. Echinoidea . Fig. 22. Apical area of Echinocardiut>t capense: the specimen 2511™ in length. s'j. Fig. 23. Apical area of Echinocardiurn flavescens; the specimen limm in length. 5/1. capense. — The pedicellariæ show partly some differences. The globiferous and ophicephalous pedi- cellariæ (the latter rather numerous on the naked actinal part of the bivial ambulacra) are like those oi flavescens. The rostrate (PI. XVII. Figs. 6,16) are more slender, the outer, widened part shorter than xa. flavescens; but small ones of the same form as those of flavescens (PL XVII. Fig. 9) also occur. The t
. Echinoidea . Fig. 22. Apical area of Echinocardiut>t capense: the specimen 2511™ in length. s'j. Fig. 23. Apical area of Echinocardiurn flavescens; the specimen limm in length. 5/1. capense. — The pedicellariæ show partly some differences. The globiferous and ophicephalous pedi- cellariæ (the latter rather numerous on the naked actinal part of the bivial ambulacra) are like those oi flavescens. The rostrate (PI. XVII. Figs. 6,16) are more slender, the outer, widened part shorter than xa. flavescens; but small ones of the same form as those of flavescens (PL XVII. Fig. 9) also occur. The tridentate pedicellariæ (PI. XVII. Figs. 5, 35, 39) have the edges of the blade more or less inrolled or even coalesced in the lower part, the outer part being more spoon-shaped widened; in quite small specimens the valves are simjily leafshaped (PI. XVII. Fig. 13). Some of the larger specimens (PI. XVII. Fig. 39) recall somewhat the larger rostrate pedicellariæ. The largest tridentate pedicellariæ seen were only o^'""" (length of head); doubtless larger ones will occur in larger specimens, and probably they will prove to differ yet more from those of flavescens. The triphyllous pedicellariæ (PI. XVI. Fig. 12) differ from those oi flavescens in being serrate almost all round the edge of the blade, only the point being smooth; the outline of the blade is also more rounded than in that species.
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1900, bookyear1903
