10 Mr. E. A. Sinitli on MoUusca from the 



C<irdiuni coronatum, Spcngler. 

 Hub. OS Cheduba, Aracan coast, 20-30 fatb. 



Cardium {Fragum) hemkardium, Linn. 

 Hub. Off Andamans, 15 fatb. 



Lucina bengalens'is, Smitb. 



Lwina hengalnisis. Smith, Ann. & Mag. Nat. J list. 1894, vol. xiv. 

 p. 17], pi. V. iigs. 1, 2. 



Hub. Stations 229 and 232, off Travancorc coast, 360 and 

 430 fatb. 



Tbe largest specimen is 47 mm. in lengtb, 42 higb, and 

 22 in diameter, tbese dimensions considerably exceeding 

 tbose of tbe type. 



Lucina dentifera, Jonas. 

 Lucina dentifera, Jonas, Reeve, Couch. Icon. vol. vi. fij^.s. 10 a, h. 

 Hob. Off Mangalore, Malabar coast, 26-30 fatb; Red 

 Sea (Jonas). 



Crypiodon investigatoris, Smitb. 



Cryptodon investigatoris, Smith, Ann. & Mag. Nat Hist. 1895, vol. xvi. 

 p. 13, pi. ii. tigs. C>, 6a; op. cit. 1896, vol. xviii. p. 374. 



Hab. Station 232, off Travancore coast, in 430 fatb. 



Tlirce left valves. Hitberto only rigbt valves bave been 

 observed, so tbat it was somewbat doubtful wbetber tbe valves 

 were similar; sueli, bowever, proves to be tbe ease. 



Psammobia arakanensis, sp. n. 



Testa oblonga, antice angustata, acute rotundata, postice latior, 

 oblique trunoata, ocquilateralis, compressa, tenuis, alba, nitida, 

 lincis clatis, tenuibus, obliquis, postice sulca radiante oblique in- 

 terruptis, ornata, pone sulcum tenuiter lamellata ; margo dorsi 

 anticus rectiusculus, leviter declivis, posticus paulo incurvatus ; 

 sinus pallii profundus, latus ; valvse tenues, intus pallidae, 



Ix>ngit. 31 mm., alt. lOo, diam. 7o. 



Hab. Off Cbeduba, Arakan coast, 20-30 fatb. 



About two tbirds of tbe surface, wliicb is marked off by an 

 oblique groove posteriorly, is covered witb ratber distant 

 raised oblique lines. This portion of tbe sbell is glossy and 

 exbibits innumerable delicate, bair-like, anastomosing lines in 

 tbe texture. Tbe binder portion is less sbining and is marked 



