Q2 Records of the Indian Museum. [VoL. XII, 
Alt. 11, diam. maj. 2:25 mm. 
Aperture; alt. 1-5, diam. °75 mm. 
Hab.— Off Ross Island, Andaman Is., 2-10 fathoms, on a bot- 
tom of sand, stones and coral (S. Kemp). 
Family NERITIDAE. 
Theodoxus oualanensis, Lesson. 
Lesson in Duperey, Voy. Cogutlle, Zool., Vol. I1, 1830, p. 379. 
Reeve, Conch. Icon., sp. 168, pl. xxxvi, fig. 168 (as Nevitina). 
Bamboo Flat Bay, 1-4 fathoms, in muddy sand. 
A single small specimen; the species though originally des- 
cribed from the Pacific appears to have a very wide range, the 
author having taken quite typical specimens some years ago at 
Baticaloa on the east coast of Ceylon. 

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Fic. 7, 7a, 76.—Ethalia capillata, Gould, X 4. 
8. 8a.—Cylichnella syngenes, sp.n. X 8. 
Family TROCHIDAE. 
Ethalia capillata, Gould. 
(Figs. 7, 74, 70.) 
Proc. Bost. Soc. Nat. Hist., 1861, Vol. VIII, p. 17. 
Off Ross I., in 2-10 fathoms, on a bottom of sand, stones 
and coral. 
A very beautiful species which appears hitherto to have escaped 
being figured. 
Order OPISTHOBRA NCHIA. 
Family SCAPHANDRIDAE. 
Cylichnella syngenes, sp. n. 
(Figs. 8, 8a.) 
Shell allied to Cylichna cylindvacea.' Pennant, a common 
European form, but differing from that species in the wider apical 

l Brit. Zool., Ed. 4, Vol. 1V, p. 117, pl. Ixx, fig. 35 (as Bulla). 
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