274 MR. F. P. BEDFORD ON MALAYAN ECHINODERMS. [Mar. 20, 



specimens which exhibit a number of points in the later develop- 

 ment, and which I hope to describe in detail further on. The fol- 

 lowing 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. Sahnacis sulcata Ag. 



7. Salmacis globafor Bell. 



8. Salmacis rarispina Ag. (fil.). 



9. Laganum depressum de Blainv. 



10. Laganum decagonale de Blainv. 



11. Laganum, sp. 



1 2. Arachnoides placenta Ag. 



13. Echinodiscus Icevis Ag. (fil.). 



14. Lovenia elongata Gray. 



15. Metalia sternalis Lam. 



16. Brissus carinatus Gm. 



1. Ehabdocidaris annulifera Lamarck. (Plate XXI. 

 figs. 1 a-d.) 



Cidariles annulifera, Lamarck, Hist. Nat. des Anim. sans Vert, 

 t. hi. 1816, p. 57. 



Phyllacanthus annulifera, Alex. Agassiz, Revision of Echini, 

 pt. iii. 1872, p. 387. 



Cidaris anmdifera, P. de Loriol, Mem. Soc. Sc. Nat. Neuchatel, 

 t. iv. 1873, p. 25. 



Cidaris luikeni, P. de Loriol. Mem. 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, lift, 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. Loven, 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 Prance, 



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, 



