Box 14, Folder 3: Coal 1861

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curved, (or perhaps sometimes rigid) proceeding rectangularly from the main stipe : which is celluliferous on one side (perhaps on both sides.) Branches plain and linear, celluliferous? Substances corneous brown or black in the shale and limestone. The cellules on the central stipe are round or oval, and there are some obscure indications of cellules on the branches, but their deformation is very unsatisfactory.

BUTHOHGRAPTUS LAXUS, (n.s.)

Description. Frond slender, lax and flexuous, midrib or stipe linear, with oval spots marking the form and place of the cellules. Branches coming off at right angles to the stipe, slightly recurved in the middle, and sometimes bent abruptly backwards. Some obscure markings upon the surface of the branches may indicate the place of cellules: branches with lanceolate terminations. Surface striated. Geological Formation and Locality. In dark-colored shaly limestone of the age of the Trenton limestone; at Platteville and vicinity, Wisconsin.

MELOCRINITES NODOSUS, (n.s.)

Description. Body pyriform, base truncate, gradually expanding to the top of the radial plates; dome rounded and more or less convex. Basal plates four, strongly nodose, extended laterally, and one half or more of the entire width occupied by the articulating facet of the column, which is deeply inserted. Radial plates three; the first largest and heptagonal; the second smaller and hexagonal; the third heptagonal. Interradial plates in series of one, two, and three: the first hexagonal and as large as the second radial; the second hexagonal and a little smaller than the third radials; the third smaller and somewhat irregular. The oval side is not usually distinguishable from the others, unless it be sometimes in a series of two larger plates above the second range in the interradial area. the dome consists of numerous small polygonal plates with a central or sub-central aperture or proboscis. The third radial is a bifurcating plate, upon which the upper sloping sides rest brachial plates; of which there are two or three ranges below the free arms. Arms two from each ray, the structure unknown. The surface is marked by strong rounded tubercles, a single one on each plate, which, at its base, occupies the greater part of the area of the plate. These nodes are sometimes much elongated and smoothly rounded at

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the summit (and rarely, a little contracted below). The dome plates are slightly nodose, often a little pointed, but in this respect variable. This is a well marked species, and the specimens vary in height from less than half and inch, to an inch and threeeighths without important differences. When well preserved, the projecting arm-bases give a somewhat pentalobate aspect when viewed from the summit.

Geological Formation and Locality. In the drift about Milwaukee, supposed to be from rocks of Devonian age. I am indebted to Mr. I.A. Lapham for specimens from this locality. I have also received from Rev. W.H. Barris, of Burlington, Iowa, a specimen of the same species from Iowa City, and presumed to come from the rocks in that neighborhood, which are of Devonian age. Specimens collected by Dr. P.R. Hoy, T.J. Hale and James Hall.

GENUS EUCALYPTOCRINUS, GOLDFUSS. EUCALYPTOCRINUS ORNATUS, (n.s.)

Description. Body below the arms sub-hemispherical, somewhat flattened at the base, with a narrow, deep, pentagonal basal cavity, formed entirely of the basal plates: which are long and gradually expanding towards their outer ends. First radial plates separated from the basal cavity by a deeply channeled suture, their width once and a half their height, and widest a little above the middle, upper margins concave. Second radials quadrangualr, much wider than high; third radials hexagonal, larger than the second, widest near the base. First supra-radials but little smaller than the third radials. Socond supr-radials much smaller than the first, pentagonal, supporting on each upper sloping side a small brachial plate upon which rest the arm plate. The first interradial plate is the largest plate in the body, irregularly ten sided, height and width equal; supporting the second plates side by side on its upper edge. Intersupra-radial plates one in each series, proportionally small. Arms and interbrachial plates unknown. Surface marked by moderately strong, irregularly radiating, interrupted lines with deep pits; sutures of plates rather widely channeled. This species differs from E. coelatus (Pal. N.Y., vol. 2, pl. 47, fig. 4,) in the more nearly hemispherical cup, while the surface ornaments are lines more properly than granules, and

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arranged in different forms, while the sutures are broad and deep channels instead of indistinct lines. Geological Formation and Locality. In limestone of the age of the Niagara group, Racine, Wisconsin. Dr. P.R. Hoy, T.J. Hale, James Hall.

GENUS GLYPTOCRINUS, HALL. GLYPTOCRINUS NOBILIS, (n.s.)

Description. Body large, robust, from base to the first bifurcation of the ray, sub-hemispherical; are bases above this prominent, giving a strongly lobed form; dome highly elevated, the distance from the base of the free arms to the base of the proboscis being once and a-half as great as the distance below. Proboscis strong, sub-central, entire length unknown. Basal plates of moderate size, spreading almost horizontally from the column. First radial plates large, second radials hexagonal, much wider than high; third radials broadly pentangular, supporting on each upper sloping side a series of four supra-radials; the upper one of which is a bifurcating plate, and supports on the upper oblong sloping edges a series of arm plates; giving eight arms to each ray, so far as determined. First interradial plate large, six or seven sided, with two smaller plates in the second range, three in the third, and several small polygonal plates above filling the interbrachial spaces, and connecting with the dome plates. Anal series unknown. Dome composed, near the base, of small polygonal plates, gradually increasing in size towards the proboscis; the dome is strongly lobed, and the depressions correspond with the interbrachial spaces. Surface of calyx plates marked by a single set of strong radiating ridges, which connect at the sutues with those for the adjoining plates; the interspaces occupied by one or more small round nodes, which are sometimes confluent. The ridge along the radial series is much the strongest, and forms a node on the centre of each plate. The dome plates are marked by similar, but less distinct lines, and a small round node on the center of each plate. This species differs from G. decadactylus (Pal. N.Y. Vol [2 crossed out, pencil X written in] in the larger size; the shortness of the base; the very large dome, and strong proboscis; as well as in the surface marking and the greater number of arms. Geological formation and locality. In limestone of the age of the Niagara Group, Racine, Wisconsin. Dr. P.R. Hoy, James Hall. [in pencil] X Vol 1 p 281 pl. 77 & 78

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GLYPTOCRINUS SIPHONATUS, (n.s.)

Description. Body large, broadly obovate, the greatest width being above the origin of the arms; calyx narrow below, spreading gradually to the bases of the arms; dome inflated on the anterior (?) side. Arms rising from body in pairs with deep constrictions between; arrangement and forms of plates of calyx not fully determined; those of the dome are small and polygonal. The above description is drawn from internal casts. This species differs from G. nobilis in the much greater length of calyx which is not contracted in the lower part; while in that species it is broad and spreading. It appears not to have had a proboscis; but in the casts there is the filling of a cavity which has passed from the summit of the dome between the postero-lateral arms, where it turns outwardly, as if it had opened on the exterior surface in the form of an oval opening. Geological Formation and Locality. In rock of the age of the Niagara group; Racine. Wisconsin. Dr. P.R. Hoy, T.J. Hale, James Hall.

GENUS BALANOCRINUS, TROOST. BALANOCRINUS INFLATUS, (n.s.)

Description. Body below the arms subturbinate, with sides somewhat inflated in the lower part; arm bases prominent, leaving deep interbrachial spaces; dome low, strongly inflated on the oval side, surmounted by a slender sub-central proboscis. Basal plates small, penagonal. Sub-radial plates proportionally large, hexagonal. First radials heptagonal, a little larger than the sub-radials; the form of the second and third radials undetermined; the second are as large as the sub-radials; the third very small. Interradial plates, six; the first hexagonal, as large as the second radials, with two in the second range, and three in the third range, uniting with the dome plates. Anal plates numerous, form and arrangement unknown. The above descriptions have been drawn from the internal casts of several specimens, which exhibit the divisions of the plates. This species differs from B. sculptus, Troost; Lampterocrinus tennesseensis, Roemer "Silurian Fauna of Western Tennessee," in being more distinctly turbinate or obconical; in the deeper interbrachial spaces; and the inflation of the dome on the anal side.

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Geological Formation and Locality. In limestone of the age of the Niagara Group, Racine, Wisconsin. Dr. P.R. Hoy, T.J. Hale, James Hall.

GENUS CARYOCYSTITES, VON BUCH CARYOCYSTITES CYLINDRICUM, (n.s.) [penciled See Vol 1 p 69]

Description. Body elongate-obovate, or sub-cylindrical; rounded at top and abruptly contracted at base near the junction with the column; basal plates undetermined. The first range above the basal series consists of eight elongate hexagonal plates. their length once and a half the greatest width, gradually expanding in width from below upwards. These are succeeded buy a second, third, fourth and fifth range of eight plates in each, all somewhat regularly hexagonal, their length a little greater than the width. Of these, the fourth range is usually the widest, situated at a little more than one third the length of the body from the summit, and at the point of greatest diameter. The sixth range above the basal plates are much smaller than the others, and narrowest at their upper ends. Alternating with the last there is a seventh range of smaller plates, surrounding those of the summit and enclosing the summit openings. Column small, round, rapidly tapering below the point of attachment. Surface characters unknown. The above description is drawn from specimens which are casts. The divisions of the smaller plates are seen, and one of the apertures of the summit is well marked on several individuals; but the ovarian aperture (which is described as being on the side towards the lower part of the boyd in CARYOCYSTITES,) has not been satisfactorily determined. The surface appears to have been coarsely granulose. Geological Formation and Locality. In limestone of the age of the Niagara group at Racine, Wisconsin. Dr. P.R. Hoy, James Hall. Grafton, Wis., Edward Daniels.

CARYOCYSTITES ALTERNATUM, (n.s.) [pencil Vol 1 p 69} Description. Body extremely elongate, sub-cylindrical, the greatest diameter near the apex, extremity with irregular constrictions near the middle in some specimens. Summit irregularly rounded, flattened, or depressed on the side of the aperture; base gradually tapering to the summit of the column. The body is compose of several (twelve) ranges of plates, varying in size and shape; in some of the ranges they are large, mostly octagonal, eight in number, in a range;