Bay of Bengal and the Arabian Sea, 11 



with regular lamellae of growth. P. bipartita, Philippi 

 (Reeve, Conch. Icon. vol. x. fig. 60), has somewhat similar 

 sculpture, but the auterior oblique lines are much more 

 numerous and closer together and the form is different. 



Tellina travancorica, Smith. 



Tellina travancorica, Smith, Ann. & Mag. Nat. Hist. 1899, vol. iv. 

 p. 249 ; lUiist. Zool. ' Investigator,' pi. xiii. figs. 1, 1 a. 



Hah. Station 229, off Travancore coast, in 330 fath. 



Abra affinis, Smith. 



Ahra affinis, .Smith, Ann. & Ma-r. Nat. Hist. 1800, vol. iv. p. 200 ; 

 lUust. Zool. ' Investigator," pi. .\iii. figs. 2, 2 «. 



Hub. Off Travancore coast, in 498 fath. 



Ahra 7naxh)ia, Sowerby. 



Abra maxima, Sowerby, Smith, Ann. & Mag. Nat. Hist. 1894, vol, xiv. 

 p. 169, pi. V. figs. .5, 0; op. cit. 1895, vol. xvi. p. 10. 



Hab. Off Andamans, 405 fath. 



Myrina indica, sp. n. 



Testa M. Simpxoni siraillima, sed minus polita, lineis increment! 



tenuibus sculpta, postice setis paucis brevibus munita. 

 Longit. 11 '5 mm., alt. 5, diam. 4. 



Hab. Station 233, off Andamans, 185 fath. 



Practically identical in form with M. Siinpsoni, Marshall, 

 from the North Sea*. It, however, is less glossy and 

 exhibits rather more distinct lines of growth, and down the 

 liinder slope a few very short epidermal bristles are observ- 

 able. Under a strong lens microscopic radiating striae are 

 visible, especially at the anterior end. The above are 

 probably not the full dimensions attained by this species. 



Septifer bilocularis, Linn. 



Hab. Off Chedubar, Aracan coast, 20-30 fath., and 

 Diamond Island, Aracan coast. 



Modiola Watsoni, Smith. 



Mudiola Watsoni, Smith, ' Challenger ' Lamellibranjhiata, p. 275, 

 pi. xvi. figs. 5-5 c. 



Hah. Off Andaman Islands, 191 fath. 



* J. Maliicol. \ol. vii. p. 108, figs. 1-3. 



