Bay of Bengal and the Arabian Sea. 159 



specimens, although they appear to be adult, are very small, 

 measuring only about 43 millim. in length. Two out of the 

 three examples in the present collection exhibit a considerable 

 amount of nodulation upon the transverse ridges of the body- 

 whorl, a feature commonly seen in larger forms of the species. 

 With the exception of the considerable difference in size 

 these specimens are fairly typical, the general form, the spire, 

 the colour and disposition of it, and the sculpture being 

 precisely the same as in normal specimens. Sowerby's figure 

 in the ' Thesaurus,' although a trifle slender, gives a very good 

 idea of the general appearance of the present examples. 



2. Conus planiliratus^ Sowerby. (PI. III. fig. 2.) 



Conus planiliratus, Sow. Proc. Zool. Soc. 1870, p. 25o, pi. xxii. fig. 1 ; 

 Thes. Conch, vol. v. p. 265, pi. dxii. fig. 72.3 ; Weinkauff, Conch. - 

 Cah. ed, 2, p. 352, pi. Ixv. fig. 6 ; Tiyon, Man. Conch, vol. vi. p. 73, 

 pi. xxiii, fig. 76. 



Hab. Off Calicut, west coast of South India, in 45 fathoms 

 {'Investigator^) ; China Sea {Sowerby). 



The original specimen described by Sowerby, now in the 

 British Museum, is not quite adult. The largest example 

 from Calicut, which appears to be full-grown, is 58 millim. in 

 length and 27 in diameter at the shoulder. 



3. Conus coromandelicus . (PI. IV. figs. 1, 2.) 



Testa breviter fusiformis, albida vel pallide carnea, epidermide dilute 

 olivacoa induta, spiraliter subnodose costulata et sulcata ; spira 

 conica, acuta; anfractus 10, sutura canaliculata sejuncti, supe- 

 riores quinque in medio angulati, cgeteri fere plani, costulis 3-4 

 .spiralibus, subnodulosis cincti, ultimus paulo infra suturam ad 

 costam sublsBvem subangulatus, inter costas lineis incrementi 

 conspicuis striatus ; apertura angusta, intus pallide fuscescens ; 

 labrum tenuissimum, intus sulcatum, ad marginem crenulatum, 

 superne profunda sinuatum. 



Longit. 37 millim., diam. 14 ; apertura 25 longa, 3^ lata. 



Var. Testa laevior, costis transversis baud nodosis. 



Hab. Off Coromandel coast, lat. 14° 18' 15" N., long. 80° 

 18' 30" E., in 80-110 fathoms; and lat. 15° 4' 7" N., long. 

 80° 25' 7" E., in 128 fathoms. 



The epidermis of this species is darker upon the spiral 

 ridges than in the interstices or grooves between them, and is 

 particularly dark between the faint nodules, so that the ridges 

 have a somewhat spotted appearance. They are about 

 twenty-six in number upon the body-whorl, of which two or 

 three are above the slight angle or shoulder, which is marked 

 by a peculiar, somewhat flattened, broad and smooth or 



12* 



