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



Curdium coronatum, Spengler. 

 Hab. Off Cheduba^ Aracan coast, 20-30 fatb. 



Cardium {Fragum) hemicardium, Linn. 

 Hab. Off Andamans, 15 fatb. 



Lucina bengalensis, Smith. 



Lucina bengalensis, Smith, Ann. & Mag. Nat. Hist. 1894, vol. xiv. 

 p. 171, pi. V. figs. 1, 2. 



Hab. Stations 229 and 232, off Travancore coast, 360 and 

 430 fatb. 



The largest specimen is 47 mm. in length, 42 high, and 

 22 in diameter, these dimensions considerably exceeding 

 those of the type. 



Lucina dentifera, Jonas. 

 Lucina dentifera, Jonas, Reeve, Conch. Icon. vol. vi. figs. 10 o, h. 

 Hab. Off Mangalore, Malabar coast, 26-30 fatb j Red 

 Sea (Jonas). 



Crypiodon investigator is, Smith. 



Cri/ptudon investigatoris, Smith, Ann. & Mag. Nat Hist. 1895, vol. xvi. 

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



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



Three left valves. Hitherto only right valves have been 

 observed, so that it was somewhat doubtful whether the valves 

 were similar ; such, however, proves to be the case. 



Psammobia arakanensis, sp. n. 



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

 oblique truncata, asquilateralis, compressa, tenuis, alba, nitida, 

 lineis elatis, tenuibus, obliquis, postice sulea radiaute oblique in- 

 terruptis, oniata, pone sulcum tenuiter lamellata ; margo dorsi 

 anticus rectiusculus, leviter declivis, posticus paulo incurvatus ; 

 sinus pallii profundus, latus ; valvas tenues, intus pallidae. 



LoDgit. 31 mm., alt. lG-5, diam. 7-5. 



Hab. Off Cheduba, Arakan coast, 20-30 fath. 



About two thirds of the surface, which is marked off by an 

 oblique groove posteriorly, is covered with rather distant 

 raised oblique lines. This portion of the shell is glossy and 

 exhibits innumerable delicate, hair-like, anastomosing lines in 

 tlic texture. The hinder portion is less shining and is marked 



