Baif of Bcni/al and the Arabian Sta. 7 



Chiton cei/lanicus, sp. n. 



Tcbta C. canalicuhitu similis, sed areis centralibus iuter liris puuc- 

 tatis, valva autica costia grunosis circiter 3(3 ornatu, cingulo 

 sqiiumis tniimtis umicto. 



lx)iigit. 14 mm., diaiu. 8. 



Hab. Off south coast of Ceylou, 3i fath. 



This species is rather like C. canaliculatus, Quoy & Gaim., 

 but ditlers iu the central areas being more finely lirate, 

 punctate between the linCj and the scales on the girdle are 

 much finer. The valves are dirty white, here and there 

 stained and dotted with light olive-brown, with a few darker 

 dots ou the posterior edge of the anterior and central valves. 



Angasia tetrica, Carpenter. 



Angnsia tetrica, Carj)., Pilsbry, Man. Conch, vol. xiv. p. i*87, pi. Ixi. 

 tigs. 



Hab. Off south coast of Ceylon, 3i fath. 

 The specimens from this locality agree exactly with the 

 variety culculosa from the Philippine Islands. 



Denlalium Shoplandi, Jousseaume. 



Dentalium Shoplandi, Jousseaume, Bull. Soc. Philom. 1894, vol. vi. 

 p. 102. 



Hab. Station 229, off Travancore coast, in 360 fath. (' In- 

 vpsti<iator') ; Gulf of Aden, G7U fath. {Jousseaume and Brit. 

 Mus.j. 



The ridges in this species vary from sixteen to about 

 twenty- two. None of the specimens, although not much 

 broken away towards the apex, exhibit any trace of a slit. 

 The largest example is 100 mm. in length and 12 in width. 



Dentalium marjnificum, Smith. 



Dentalium magn^cutn, Smith, Ann. & Ma^'. Nat. Hist. 180G, vol. xviii. 

 p. 371. 



Hab. Station 232, off Travancore coast, in -130 fath. 

 The riblets are finer and more numerous in this sjiecies 

 than in D. Shoplandi, and the apex is deeply slit. 



Xylophaga indica, sp. n. 



Testa X. (hrsali similis, sed valvis sulco mediano aequaliter bi- 



partitis, lira interna a^'pie ccntrali. 

 Diam. 12 mm., luiigit. uinbune ad marginom veutralem 12. 



Hab. Station 233, off Andaraans, 185 fath. 



