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Show 274 MR. F. P. BEDFORD ON MALAYAN ECHINODEUMS. [Mar. 20, specimens which exhibit a number of points in the later development, and which I hope to describe in detail further on. The following is a list of the species of which examples were collected:- 1. Rhabdocidaris annulifera Lam. 2. Diadema saxatile Linn. 3. Asthenosoma heteractis, sp. nov. 4. Temnopleurus toreumaticus Ag. 5. Temnopleurus reynaudi Ag. ? 6. Salmacis sulcata Ag. 7. Salmacis globator Bell. 8. Salmacis rarispina Ag. (fil.). 9. Laganum depressum de Blainv. 10. Laganum decagonale de Blainv. 11. Laganum, sp. 12. Arachnoides placenta Ag. 13. Echinodiscus Icevis Ag. (fil.). 14. Lovenia elongata Gray. 15. Metalia sternalis Lam. 16. Brissus carinatus G m. 1. RHABDOCIDARIS ANNULIFERA Lamarck. (Plate XXI. figs. 1 a-d.) Cidariies annulifera, Lamarck, Hist. Nat. des Anim. sans Vert. t. iii. 1816, p. 57. Phyllacanthus annulifera, Alex. Agassiz, Revision of Echini, pt. iii. 1872, p. 387. Cidaris annulifera, P. de Loriol, M e m . Soc. Sc. Nat. Neuchatel, t, iv. 1873, p. 25. Cidaris lutkeni, P. de Loriol, M e m . Soc. Sc. Nat. Neuchatel, t. iv. 1873, p. 29. Schleinitzia crenularis, Th. Studer, Monatsb. Ak. Wiss. Berlin, 1880, p. 865. Leiocidaris annulifera, L. Doederlein, Die Japanische Seeigel, i. 1887, p. 24. References. H. Troschel, Sitzungsb. d. niederrhein. Ges. in Bonn, 1887, p. 335. Alexander Agassiz, 'Challenger' Reports, iii. Echinoidea (1881). P. de Loriol, Beitrage d. Geol. u. Pal. d. Libysche Wiiste, Ab. 3, Hft. i., 1883. P. de Loriol, Mem. Soc. de Physique &c. de Geneve, t. xxviii. No. 8 (1883). C. Ph. Sluiter, Natuurk. Tijd. v. Ned. Ind. D. xlviii. (1889;. S. Lovcn, Bih. till K. Sv. Vet.-Akad. Handl., Bd. 18 (1892). P. de Loriol, Rev. Suisse de Zool. t. i. (1893). R. Koehler, Mem. Soc. Zool. de France, t. viii. (1895). Locality. Seven specimens from Singapore, one from Malacca. Habitat. Spines of this species are extremely abundant in nearly all dredgings on a sandy or muddy bottom round Singapore; as Dr. Sluiter noticed in the Bay of Batavia, so here, the species seem to prefer a ground composed of comminuted fragments of shell, |