-i I'M. i i i mix. 

 l:ir character: they are probably ideiit ieal, :ind may pfOVC U) be 



u\ IIKMI- \\ i! li oniana. 



ir it limit cup*. 



ii Hi in, nnirijiit. f icings not thickened. 



S. 8EPI01DEA, Wainv. PL ',:;, li-. ->\(\. 



r>ody ovate, obloii"-. vioh't-spot I ed. acuminate behind ; lin> 

 commeiiciiio sinin 1 distance In-hind, outline subrhomboidal : 

 le :inns subulate, slender, order of lenji'th :;. 1. I, '2. thr 

 dir>:il j:iir e<nnjri'ss-d. the others depressed, the rin^s hi'ond. 

 with lonir. Mcule teeth; tentacles >li-htly elnliliel, the cups in 

 four lines, of which those of the two centrnl ;ire hu-iicst. Shell 

 very thin, t r.'insparent . very l>ro;id. hmeeohite ; centi-;il rid<rr 

 hro.-id ;il>ove. narrow helow. A small species, attaining 4 inchex. 



West Indies. 



t f SJtell iritli itt.f irf/in <>f <rin,>/x thickened. 

 S. Si.o. \.\ii. Leach. 



Fins widest in middle of body. Shell with broad win_^>. 

 Not liirmvd. 



West Indies. 



s. o\ ATA. (iai)b. ri. <;;;, iio-. ^17. 



IJody broa<l. bluntly pointeil [>osterioii\ ; iins narrow, regu- 

 larly rounded in mar>-inal outline, widest in the middle; sessile 

 arms, order "f Irniilli '!. 4. '2. 1. laterally compressed, but 

 slightly <lilated at the club. Shell with broad winp>. 



West Ino 



Mr. (Jabb distinguishes it from .S. Slotmli by t he margin of 

 the shell not heinij thickene<l. but I tind that the margin of his 

 typical -hell is thickened, and therefore it is very probable that 

 it is tin- same species. 



S. I'.i.AiNVii.i.iAXA. Fer. and Orb. PI. <;:;. li^. iM^: pi. 64, 



iM'.i. 10. 



Uody cylindrical, attenuated but rounded behind ; tins tle-hy. 

 very broad. br>ade-.l in the middle, maririn outline well rotm<led : 



!e arms lonjr and Blender, the rinus obli(|Ue. \\ith loi 

 acute ieeth : ten1a<-le> with moilerate clubs and >ueker-. the 

 teeth of the rin^s ^imilar t<> those of th 

 30 



