65 



with the periproct. No distinct anal plate in larger 

 specimens. The pores are close to the edge of the 

 area. Pits large on the abactinal side (sharp or be- 

 velled) 2. 



2. Globiferous pedicellariæ without distinct lateral teeth; 

 ophicephalous pedicellariæ with the edge very little 

 sinuated. Apical area raised; pits bevelled in larger 

 specimens. Spines dark at the base, not ringed .... ^- Hanlwickii (Gray). 



Globiferous pedicellariæ with 1 — 1 small, but di- 

 stinct lateral teeth; ophicephalous pedicellariæ di- 

 stinctly sinuate at the edge. Apical area not raised; 

 pits (mostly) sharp, also in larger specimens. Spines 

 ringed 7'. tureiiniaticiis (Klein). 



8. Salmacis bicolor Ag., var. rarispina (Ag.). 



PI. VI. Figs. 2, 4, 23, 26, 39, 40. PI. VII. Fig. 1. 



Salmacis bicolor. L. Agassiz & Desor. 1846. Catalogue raisonné des Échinides. p. 55. 



— rarispinus. — Ibidem. — 



— bicolor. Agassiz. 1872. Rev. of Ech. p. 156, 471. PI. VIII. a. Figs. 11 -12. 



— rarispina. — Ibidem, p. 156, 475. PI. VIII. b. Figs. 4— 6. 



— bicolor. Bell. 1880. On some genera and species of Temnopleuridæ. p. 428. 



— rarispina. — Ibid. p. 429. 



— bicolor. Bkll. 1882. Note on the Echinoderra Fauna of the Island of Ceylon, together with 



some observations on Heteractinism. Ann. Nat. Hist. 5. Ser. X. p. 219. 



— — DE LoHioL. 1883. Catalogue rais. des Ech. de Maurice, p. 20. 

 (?'i — ylobatrii: Loven. 1887. Echinoidea descr. by Linnæus. p. 72. 



— bicolor. Duncan & Sladen. 1888. Echinoderms of the Mergui Archipel. Journ. Linn. Soc. 



XXI. p. 318. 



— rarispina. Bedford. 1900. Echinod. from Singapore and Malacca, p. 283. 



— bicolor. DÖDERLEIN. 1902. Bericht über die von Herrn Prof Semon bei Amboina u. Thursday 



Isl. gesammelten Echinoidea. p. 714. Taf LXI. Fig. 6 — 10. 



— rarispina. Döderlein. 1902. Ibidem, p. 719. Taf LXIA^ Fig. 3— 3 c. 



— — de Meijere. 1904. Siboga-Echinoidca. p. 83. Taf V. Fig. 40. 



Non: Salmacis rarispina. de LomoL. 1893. Échinodermes de la baie d'Amboine. 



p. 370 (= S. sphœroides (L.)). 

 — — — A. Agassiz. 1881. Challenger-Echinoidea. p. 113. 



After the most excellent description of the structure of the test in the dif- 

 ferent Sa/maczs-species given by Döderlein it is unnessary to discuss the subject here 

 again. Only the pedicellariæ and a few other features need yet to be mentioned. 



All the four common kinds of pedicellariæ are found — as in all the Sal- 

 macis-species. The globiferous pedicellariæ are of two different kinds, a large form 

 without lateral teeth (PI. VI. Fig. 26) and a small, delicate form with one, unjjaired 



I) K l> Vidensk Selsk. Ski.. 7. Ra-kke, iKiturviilensk. og niathein. Ar<l. I. I. 9 



