216 Two new species of Carinaria. [April, 



of our discovery, and our want of greater success, it would appear that 

 this and the following species are scarce, even in that region. Both 

 species, like all the others known, are hyaline, and very fragile. Their 

 spires consist of three whorls. The obliquity of the rugse of the last 

 or straight whorl, together with its straightness and gradual attenua- 

 tion, will serve to distinguish Carinaria Cithara from any other species. 

 It is named from its resemblance in form and sculpture to a harp. 



Sp. 2. C. Galea. Testa dextra, ultimo anfractu incurvo, compresso- 

 conico, spiram terminalemfere amplectente, rugis transversis ornato, late 

 carinato, carina rugis perobliquis, recurvatis ; aperturd transversd, ovatd, 

 versus carinam coarctatd. Habitat cum precedente. 



Shell dextral, with the last whorl incurved, compressed, conical, 

 nearly embracing the terminal spire, marked with transverse rugse, 

 broadly keeled. Keel with very oblique rugse, which are curved up- 

 wards in the direction of the spire. Aperture transverse, ovate, nar- 

 rowed towards the keel. 



The animal resembles that of the preceding species, but the yellow- 

 ish or brownish colour in the stomach is replaced entirely by pale 

 carmine. Belonging to the same type as the last species, and resem- 

 bling in form a compressed helmet, the shell is easily distinguishable 

 by the greater curve of the outer edge of the last whorl, which does 

 not decrease so delicately as in that species, as well as by the less 

 obliquity of the rugse on the body whorl, and the greater obliquity and 

 curvature of those on its very broad keel. The body striae being 

 parallel with the edge of the aperture, it follows that in the species 

 under review, the mouth is less oblique than in C. Cithara. Its keel, 

 the close embrace of the spire by the last whorl, and the breadth of 

 the latter at this point, will abundantly serve to distinguish it from C. 

 vitrea. The keels of both C. galea and C. Cithara are from their 

 thinness and excessive fragility, very liable to injury even in their 

 native element. 



The addition of these two species of Carinaria increases the num- 

 ber known to naturalists to six, the others being C. Mediterranea, 

 fragilis, vitrea, and depressa. Of these one is from the Mediterranean, 

 two from the seas washing the Western Coast of Africa and Mada- 

 gascar, and the fourth is supposed to belong to the eastern seas. 



InN. Lat. 4° 50', E., Long. 91°. Lieut. McNair took two true Cari- 

 narise, the shells of which were replaced by a plate consisting of 

 agglutinated pieces of broken shell, adhering to the suspended viscera. 

 We captured also several species of naked Firolidse belonging to the 

 genus Pterotrachea. 



Calcutta, March, 1835. 



