48 MARINE SHELLS. 
HIPPONYX. 
Hipponyx barbatus... ........ SbY. i... 42 eee Acapuico 
Hipponyx etayanws.,... k<% 46>: )).42t2 tee Acapulco 
Hippouyx planulatus. 2. 22255. iss. ee ee Acapulco 
HIPPOPUS. 
Hippopus maculatus....:.....- LON: cee East Indies 
HYSTRIX. (See Ricinula.) 
! 
[ANTHINA. 
Panthin aicoOnmmiunis. 2295 fe Lam. ..... Britain 
fanthing exieua.. oso oeeees os Sh REE Ss sf Britain 
funtoing ‘striata. 2.5555 22h. OG 54h eee Hawaiian Is 
fanthina simulated?) oo -sse.e) f! a> ae ee Mazatlan 
Ianthina Se ee isons a eee e kee wh bred, 6 Selec nn Azores 
IMPERATOR. (UVANILLA.) 
Imperator imperialis: .... 4,-5.2... Chena. ore ...New Zealand 
Imperator olivaceus; 2... <-...5% Sere ees Gulf of California 
Diiperator MH SwIs 2.6 oF. en's Wood... ..: i+. 506 sean 
IPHIGENIA. ‘ 
ipivenia AIGree. 2.23 vee co Sbyk. oe ese eee Mazatlan 
Iphigenia brazilensis: /i<¢. 2... ham... 034... ee Cuba 
ISOGNOMON. 
Isoenomon chemnitzianiam;. 6. eae hae Gulf of California 
JANIRA. 
Janira,dentata . <. 5 sever eer ye Ua. see er Gulf of California 
JEFFREYSIA 
Jefireystardiaphana,.. 4.00.26. 0 ALGO? . ice eens eee Britain 
Jetireysia,clobularigs... 2.222. IF? ceue eee sae Britain 
Jelireygia Opalina.. . .....s)50 LOFT «0. - nine a eee Re Britain 
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