136 MESSRS. ALDER AND HANCOCK ON 



rounded behind, and laminated but not notched in front. Length varying from 3 to 

 8 inches. 



Occasionally found along the Coromandel coast. When alive, the tinting of the 

 mantle is exceedingly deUcate and beautiful. 



Suborder Polybranchiata, F6russac. 



Family SCYLL^ID^, Alder 8f Hancock. 



Genus Scyll^a, Linnaus. 



Body compressed. Cloak produced into lateral lobes, with plumose or tufted 

 branchiae scattered over the inner surface. Tentacles two, laminated, with large, com- 

 pressed sheaths. Veil rudimentary. Anus lateral. Foot linear, grooved. 



Tongue broad, with numerous rows of denticulated spines. 



SCYLL^A MARMOEATA, n. Sp. (Pi. XXXIII. fig. 3.) 



Body rather stout, nearly Unear, tapering to a blunt point at the tail ; marbled with 

 dark and pale brown, with a few scattered ill-defined spots of a dusky hue : a pale line 

 runs down the back of the tentacular sheath and along the pallial ridge, following the 

 branchial lobes, and uniting behind in a single line which passes along the margin of 

 the caudal crest : a row of distant yellow tubercles runs along each side of the body, 

 with a few indistinct scattered ones on the same part. Tentacles small, finely laminated, 

 rising out of large wide sheaths, the posterior surface of which is expanded into an 

 arched wing or crest. Branchial lobes two pairs, placed rather close together, pretty 

 regularly rounded or ovate, marked with a darker belt of marbling externally, within 

 the pale line already mentioned. Branchial tufts luxuriant, covering nearly the whole 

 ot the inner surface of the lobes, and extending a short way on each side of the caudal 

 crest, which is not very large, commencing abruptly, and arching pretty regularly back- 

 wards. Foot narrow, truncated in front, and pointed behind. Length 1| inch. 



This species difiers from /S. pelagica in colour and markings, in its smaller size, more 

 rounded lobes, and less produced caudal crest ; but the species of this genus have been 

 so imperfectly described that it is not easy to decide upon their specific difi"erences. 



Three specimens have been preserved in good order. The species is stated to be 

 common. 



SCYLL.EA VIRIDIS, n. sp. (PI. XXXIII. figs. 4, 5.) 

 Body rather slender, linear, produced into a slender pointed tail, of a uniform greenish 

 colour, with a few pale tubercles. Tentacles stoutish, rising from short sheaths, with 



