256 Mr. E. A. Sniitli on Mollusca from (he 



Hab. Station 2J8, VV. of Travancore, 224-284 fatli., sand. 



The sculpture of the two valves in this beautiful species is 

 altogether different, that of the right valve, which is a litile 

 flatter than the left, consisting of very delicate and close-set 

 regular lauiellaj or stride, whilst the left valve has numerous 

 fine radiating riblets, which are minutely squamose through 

 being crossed by the very fine concentric lamellae. The 

 internal riblets, ten in number in each valve, do not reach to 

 the margin, and those of the left valve are a little finer than 

 those of the right. The colour of the valves is also different. 

 The deeper valve is more or less orange-tinted within and 

 "without, whereas the light valve is almost white, with only a 

 trace of colour on each side towards the dorsal slopes. 



Amussium manaricum, sp. n. 



Testa fragilis, pellucido-albida, opaco-albo radiata, inicquivalvis, 

 leviler obliqua, et paulum insequilateralis, valva sinistra cou- 

 vexiuscula, ooncentrice tenuiter lamellata, lirisque radiantibus 

 tenuibus plus minus caucellata, valva dextra conceutrice lamellata, 

 versus marginem concava ; umbones acnti, ad angulum circa 

 115° coiivergentes ; lira^ interute circiler ]5, baud ad marginera 

 continua). illis in valva sinistra tenuioribus ; auriculce ina}quales, 

 anticis pauUum majoribus. 



Longit. 24-5 mm., alt. 26, diara. 4-5. 



Hah. Station 333, Gulf of Mauar, 401 fath.; Station 322, 

 Andaman Islands, 378 fath. 



The valves arc fairly strong up to the ends of the radiating 

 lirae, but beyond that point they become very fragile and 

 easily break away. The concentric fine lamellse are very 

 similar in both valves, but the left valve, which is gently 

 convex from the umbo to the opposite margin, also exhibits 

 fine radiating lirae. These, however, gradually disappear 

 about the middle of the valve, so that only the upper half of 

 the suiface is cancellated. The auricles, of which the ante- 

 rior are a trifle larger than the posterior, exhibit fine lines of 

 growth and a few radiating threads also, excepting the hinder 

 auricle of the right valve, which liardly shows any trace of 

 this radiating sculpture. The front auricle of the same valve 

 is bounded below by a narrow groove at the byssal sinus. 



Loripes victorialis (Melvill). 



Ci-yptodon victorioUs, Melvill, Ann. & Mag. Nat. Hist. 1890, vol. iv. 

 p. 08, pi. ii. tig. 8. 



Hab. Station 34(>, Persian Ciulf, 47 fath. 



The presence of hinge-teeth, as described by Mr. Melvill, 



