54 THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS overlapping the cryptodeltoids. The hexagonal superdeltoid is adjacent to the oral opening on the adorai side <strong>of</strong> the anal opening or anispiracle. Thus there are five spiracles surrounding the oral opening-four spiracles in addition to the anispiracle. Five hydrospire folds occur on each side <strong>of</strong> an ambulacrum. Ambulacra five, linear, each 20 mm. long by 1.5 mm. wide, with side plates covering lancet plate, and 34 side plates in 10 mm. length <strong>of</strong> each ambulacrum. The side plates are normally disposed, with the subtriangular secondary side plates resting on the bevelled adoral-abmedial corners <strong>of</strong> each elongate subquadrangular primary side plate. One large pore is present between adjacent side plates and radial margins, but pores are absent along the deltoid margins. There are five cover-plate sockets to each side plate along the main food groove. The surfaces <strong>of</strong> the calyx plates are ornamented with fine growth lines parallel to plate margins. Remarks.-The above description is based on characters seen in two specimens, one complete and one polished specimen, here considered to be the original types. Occurrence.-Middle Devonian, Eifel beds, PeIm, Germany. Types.-Holotype, 325, one specimen complete, Schultze collection, figured by SCHULTZE pl. 13, fig. 6; paratype, 325, one polished section, figured by SCHULTZE pl. 13, fig. 6e (selected lectotypes by me), Harvard Museum <strong>of</strong> Comparative Zoology, Cambridge, Mass. CORDYLOBLASTUS CLAVATUS (Schultze) Plate 20, figures 1-9; text-figs. 80-81 Pentremites clavatus SCHULTZE, 1866, 1867, p. 225, pl. 13, fig. 7. Description.-Calyx calcitic, club-shaped in side view, pentagonal in top view, 15 mm. long by 9 mm. wide, with vault 8 mm. long, pelvis 7 mm. long, pelvic angle on basals 40 degrees and on radial bodies 115 degrees, with periphery at radial lips slightly below mid-height. Stem impression round, crenellar, not well preserved. Basal circlet conical and elongate in side view, round in basal view, flattened triangular at contact with stem, 5.5 mm. long by 4.5 mm. wide, with three normally disposed basais that each has a prominent medium ridge near the aboral end. Radials five, each elongate hexagonal, 10 mm. long by 4.5 mm. wide, with long, narrow, shallow sinus 8 mm. long by 2 mm. wide; radials overlapping deltoids. Deltoids four, short, not visible in side view, with one spiracle in each adoral tip and four V-shaped deltoid lips adjacent to oral opening. On anal side the anispiracle is visible between the superdeltoid and hypodeltoid. Hypodeltoid visible in side view. Ambulacra five, linear, each 9 mm. long by 2 mm. wide, with lancet covered by side plates except near adoral end. Side plates normally disposed, with 24 side plates in 10 mm., and one pore between adjacent plates along radial margins. The surfaces <strong>of</strong> the calyx plates are ornamented with fine growth striae parallel to plate margins. Occurrence.-Devonian, Calizas de Arnao, Leon, Spain (described specimen), and Devonian near Kerpen, Nollenbach, Germany (syntypes). Types.-Syntypes, 539, nine specimens, Schultze collection, old number 2346, Harvard Museum <strong>of</strong> Comparative Zoology, Cambridge, Mass. Plesiotype, 19,090, one specimen (described), Gurley collection, Walker Museum, <strong>University</strong> <strong>of</strong> Chicago, Chicago, Illinois. Plesiotype, S3,613, two specimens, Springer collection, from area near Sabero, Spain, U. S. National Museum, Washington. CORDYLOBLASTUS EIFELENSIS (Roemer) Plate 21, figures 1-10; text-figs. 82-89 Pentatrematites eifelensis ROEMER, 1852-54, P. 280. Description.-The description is based mainly on observed characters <strong>of</strong> one specimen (no. 213) in the Schultze collection. Calyx calcitic, club-shaped in side view, pentalobate in top view, 18.5 mm. long by 13.5 mm. wide, vault 4.5 mm. long, pelvis 14 mm. long, pelvic angle on basais 35 degrees and on radial bodies 70 degrees, with periphery at radial lips well above mid-height. Stem FIGURES 77-86. Species <strong>of</strong> Cordyloblastus FAY, II. gen., Devonian, Europe. 77-79. C. acutangulus (ScuuurzE), Eifelian, Pe1m, Germany (Harvard Mus. Comp. Zoology, no. 325); 77, summit area <strong>of</strong> calyx and part <strong>of</strong> "CD" (anal) interambulacrum, X15; 78, partial cross section <strong>of</strong> "D" ambulacrum, X15; 79, part <strong>of</strong> "C" ambulacrum, showing main and outer side plates, X15. 80, 81. C. clavatus (Scrnn.TzE) Middle Devonian, Nollenbach, Germany (Univ. Chicago, no. 19,090); 80, stem impression at base <strong>of</strong> calyx, X15; 81, part <strong>of</strong> "B" ambulacrum, showing main and outer side plates, X45. 82 86. C. eifelensis (RoEmER), Eifelian, Nollenbach, Germany (Harvard Mus. Comp. Zoology, nos. 213, 305; Buffalo Soc. Nat. Sci. no. E21,087); 82, anal area (no. 213), X15; 83, anal area, drawn from polished tangential section, hypodeltoid lacking (no. 305), X15; 84, partial cross section <strong>of</strong> "A" ambulacrum (no. 213), X15; 85, part <strong>of</strong> "C" ambulacrum, showing main and outer side plates (no. 213), X45; 86, summit area and part <strong>of</strong> "CD" (anal) interambulacrum (no. E21,087), X45. [Explanation.-"A," amb.; An, anal opening; Bf, brachiolar facet; Bp, brachiolar pit; "C," amb.; C, canal (radial); CR, cryptodeltoid; "D," amb.; Db, deltoid body; D1, deltoid lip; H, hydrospire; HD, hypodeltoid; L, lancet; 0, oral opening; OSp, outer side plate; P, pore; Pf, pore furrow; R, radial; RI, radial limb; S, spiracle; Sp, main side plate; Su, superdeltoid; Z, azygous basal.]
BLASTOID STUDIES 55