LOLTGO. 145 



but fins are longer ; differs from L. Duvavcelii in the fins being 

 longer, and the shell broader, with a narrow stem. 



Indian Ocean. 



L. CHTNENSIS. Gray. 



Bod}' subcylindrical, acuminated behind, with rhomboidal fins. 

 Rings of the cups of the ventral pair of arms with many close, 

 acute teeth ; tentacular arms with numerous rather large cups 

 and some rather small ones at the tip, rings with distant teeth. 

 Shell broad-lanceolate with a short, broad stem. Eaten in Canton. 



Not figured. 



China. 



L. SUMATRENSIS, Fer. and Orb. PI. 58, figs. 190, 191 



Body short, cylindrical, attenuated behind ; fins regularly 

 rhomboidal, truncated in front, angles rounded, nearly half the 

 length of the body ; arms moderate ; tentacles very long and 

 slender. Shell oblong, spoon-shaped; upper part rather narrow 

 and produced. Placed by Gray in his genus Teuthis, but evi- 

 dently a true Loliyo. 



Sumatra. 



L. VULGARIS, Lam. 



From this common European species have been separated by 

 the minute perception of modern naturalists, a number of so- 

 called specific forms, the distinctness of which appears to me to 

 be problematical. The characters, which are comparative, m&y be 

 individual only, in their strict limitation, or they may, perhaps, 

 indicate varieties or even sub-species. I give the table of dis- 

 criminative characters constructed by Lafont, and proceed with 

 the descriptions of these forms. 



A. Fins shorter than half the length of the body. 



L. ALKSSANDRINII, L. MENEGHINII, L. PULCHRA. 

 />. Fins longer than half the length of the body. 

 * Cups of the tentacles very unequal. 



Eye small. L. AFFINIS. 



Eye moderate. 



L. BREVICEPS, L. NEGLECTA, L. MICROCEPHALA. 



Eye very large. L. VULGARIS. 

 * * Cups of the tentacles nearly equal. 



Eye small. L. FORBESII. 



Eye very large. L. MACROPTHALMA. 



19 



