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56 THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS broken. Basal circlet conical in side view, rounded pentagonal in basal view, 9 mm. long by 7 mm. wide. Radials five, wide, subquadrangular, each 10 mm. long by 6 mm. wide, with short, narrow, shallow sinus 6 mm. long by 1.5 mm. wide, with outward-flaring radial lips, giving a pentalobate appearance to the calyx in top view. The radial limbs are shorter on the anal side than on the other sides. Radials overlap deltoids. Deltoids four, not visible in side view, each divided into a small quadrangular deltoid body 0.5 mm. long by 0.5 mm. wide and a lip that is approximately 0.5 mm. wide, with a large, wide oval spiracle between, each spiracle bordered laterally by a lancet stipe and side plates. On the anal side there are four deltoid plates, two of which (superdeltoid and hypodeltoid) are seen externally, the two cryptodeltoids being hidden beneath the hypodeltoid. The superdeltoid is adjacent to the oral opening and bordered aborally on each side by a lancet stipe. The wide oval anispiracle is located between the superdeltoid and pentagonal hypodeltoid, the latter plate being 1.5 mm. long by 1.5 mm. wide and barely visible in side view. Internally, the two cryptodeltoids rest on the aboral face of the superdeltoid, separating the anal spiracles from the anal opening internally and they are overlapped by the radial limbs and hypodeltoid. Thus, there are five openings around the oral opening, the four spiracles and anispiracle. Ambulacra five, linear, each 8 mm. long by 1.5 mm. wide, with lancet covered by side plates except along the main food groove at the adorai end. There are 22 side plates in a space of 10 mm. along an ambulacrum, one pore between adjacent side plates along radial margins, and pores absent along deltoid margins. In mature specimens there are nine hydrospire folds on each side of an ambulacrum, including the anal side. The surfaces of the calyx plates are ornamented with fine growth striae parallel to plate margins. One abnormal specimen has a sixth short radial developed on the summit between the (D) and (E) radials. There is much variation in this species and more work needs to be done on the small specimens. In one small specimen there appeared to be only four hydrospire folds on each side of an ambulacrum. Occurrence.—Middle Devonian, Eifelian, Pram, Gerolstein, Nollenbach, Germany. Types.—Topotypes, 213, one specimen, Schultze collection, old no. 25, Eifel; 305, six specimens, old no. 2348, Nollenbach bei Kerpen, Schultze collection. Plesiotype, 195, one specimen, old no. 26, Eifel, Schultze collection, Harvard Museum of Comparative Zoology, Cambridge, Mass. Plesiotypes, E21,087, two specimens, Eifel and E21,109, two specimens, Gerolstein, Prussia, Buffalo Society of Natural Sciences, Buffalo, New York. Others not studied in detail or figured are in the Walker Museum, 87 FIGURE 87. Cordyloblastus eifelensis (RoEmEa), Eifelian, Nollenbach, Germany (Buffalo Soc. Nat. Sci., no. E21,- 109); partial cross section of "E" ambulacrum, X45. [Explanation.—R, radial; Rp, radial lip.] University of Chicago, and in the United States National Museum. CORDYLOBLASTUS GILBERTSON' (Etheridge & Carpenter) Plate 23, figures 1-3 Pentremitidea gilbertsoni ETHERIDGE & CARPENTER, 1886, pp. 24, 179, pl. 5, figs. 9-11. Pentremites clavatus SCHULTZE, 1866, 1867, p. 225, pl. 13, fig. 7c only. Description.—Calyx calcitic, 8.5 mm. long by 7.5 mm. wide, vault 6 mm. long, pelvis 1.5 mm. long, pelvic angle on basals 50 degrees, and on radial bodies 170 degrees, with ambulacra slightly recurved below, and periphery above radial lips. Remarks.—The figured specimen appears to be the same one as figured by SCHULTZE on pl. 13, fig. 7c and is here removed from Cord yloblastus clavatus. Occurrence.—Middle Devonian, Eifel beds, Pelm, Germany. Types.—Plesiotypes, 313, three specimens, Schultze collection, the figured specimen probably being one of SCHULTZE ' S syntypes of Pentremites clavatus, old no. 2347, Harvard Museum of Comparative Zoology, Cambridge, Mass.
BLASTOID STUDIES 57 CORDYLOBLASTUS LUSITANICUS (Etheridge & Carpenter) Plate 22, figures 4-9; text-figs. 90-93 Pentremindea /usitanica ETHERIDGE & CARPENTER, 1882, p. 223. Description.—Calyx calcitic, 6.5 mm. long by 4.5 mm. wide, vault 2 mm. long, pelvis 4.5 mm. long, pelvic angle on basal circlet 15 degrees and on radial bodies 60 degrees, calyx obconical in side view. Otherwise similar to Cord y sis. -loblastus eifelen Occurrence.—Devonian, Calizas de Arnao, Le6n, Spain; Eifel beds, Gerolstein, Germany. Types.—Plesiotypes, 19,091, two specimens (one described), Germany, Gurley collection, Walker Museum, University of Chicago; S3,616, 32 specimens in a glass vial and 59 specimens of Hambach collection in another glass vial, Germany, Springer collection; S3,619, one specimen, Spain, Springer collection, U. S. National Museum, Washington. CORDYLOBLASTUS ROEMERI (Etheridge & Carpenter) Plate 22, figures 1-3; text-fig. 94 Pentrenntidea roerneri ETHERIDGE & CARPENTER, 1886, pp. 104, 171, 175, pl. 5, fig. 15; pl. 16, fig. 11. Description.—The specimen here figured is 9 mm. long by 7 mm. wide, and may be distinguished from examples of other species by shape of the calyx in side view. The rounded summit, together with the almost equal length of the vault and pelvis, and wide calyx serve to distinguish this species. Occurrence.—Devonian, Calizas de Arnao, Le6n, Spain. Type.—Plesiotype, S3,615, one specimen and one cast, Springer collection, U. S. National Museum, Washington. 93 92 90 88 9' FIGURES 88-94 Species of Cordyloblastus FAY, n. gen., Devonian, Europe. 88-89. C. eifelensis (RoEmER), Eifelian, Nollenbach, Germany (Buffalo Soc. Nat. Sci., no. 21,087); 88, part of "A" ambulacrum, showing main and outer side plates, X90; 89, part of "C" ambulacrum, showing side plates, X45. 90 93. C. /usitanicus (ETHERIDGE & CARPEN- TER), Calizas de Arnao, Leon, Spain (U.S. Natl. Mus., no. S3,616, S3,619; Univ. Chicago, no. 19,091); 90, anal area (no. S3,616), X37.5; 91, cross section of "B" ambulacrum (no. 19,091), X45; 92, part of "D" ambulacrum, showing side plates (no. S3,616), X37.5; 93, part of another ambulacrum (no. S3,619), X37.5. 94. C. roemeri (ETHERIDGE & CARPENTER), CalilaS de Arnao, Leon, Spain (U.S. Natl. Mus., no. S3,615); part of ambulacrum, showing side plates, X37.5. [Explanation.—An, anal opening; Bf, brachiolar facet; Bp, brachiolar pit; CR, cryptodeltoid DI, deltoid lip; H, hydrospire; L, lancet; 0, oral opening; OSp, outer side plate; P, pore; R, radial; Sp, main side plate; Su, superdeltoid.]
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