No. 89.] 



33 



375 Caecum corrugulatum, 



376 Caecum dextroversum, 



377 Caecum reversum, 



378 Caecum teres. 



FAMILY TURRITELLIDiE. 



379 Turritella goniostoma, 



380 Turritella tigrina. 



Fi\MILY CERITHIAD.^. 



381 Cerithium maculosum, 



382 Cerithium ?famelicum, 



383 Cerithium ? uncinatum, 



384 Cerithium (a), 



385 Cerithium alboliratum, 



386 Cerithium {h), 



387 Cerithium stercus-musearum, 



388 Cerithium interruptum ; 



389 Vertagus gemmatus, 



390 Vertagus ; 



391 Triforis alternatus, 



392 Triforis inconspicuus, 



393 Triforis ? infrequens ; 



394 Cerithidea montagnei, 



395 Cerithidea ? varicosa var. 



[mazatlanica. 



FAMILY LITORINIDiEl, 



396 Litorina conspersa, 



397 Litorina aspera, 



398 Litorina philippii, 



399 Litorina ■ — , 



400 Litorina fasciata ; 



401 Modulus catenulatus, 



402 Modulus , 



403 Modulus disculus ; 



404 Fossarus tuberosus, 



405 Fossarus angulatus ; 



406 Isapis maculosa, 



407 ? Isapis —. 



FAMILY RISSOID^, 



408 Rissoina stricta, 



409 Rissoina — — , 



410 Rissoina woodwardii ; 



411 Barleeia lirata ; 



412 ? Alvania excurvata, 



413 Alvania effusa, 



414 Alvania tumida, 



415 ? Alvania — ; 



416 ? Cingula ; 



417 Hydrobia ulvae, 



418 ? Hydrobia . 



FAMILY JEFFREYSIAD^. 

 419 Jeffreysia bifasciata, 

 LSenate, No. 89 J 



420 ? Jeffreysia alderi, 



421 Jeffreysia tumens, 



422 ? Jeffreysia 



FAMILY TRUNCATELLID^. 



423 ?Truncatella . 



FAMILY PLANAXIDiE. 



424 Planaxis nigritella ; 



425 Alaba supralirata, 



426 Alaba violacea, 



427 Alaba terebralis, 



428 Alaba alabastrites, 



429 Alaba scalata, 



430 ? Alaba conica, 



431 ? Alaba mutans, 



432 ? Alaba lagundula, 



433 ? Alaba — (a), 



434 ? Alaba {b). 



FAMILY OVULIDiE. 



435 Ovula variabilis. 



FAMILY CYPR^ID^. 



436 Cypraea exanthema ; 



437 Luponia ? spurca ; 



438 Aricia arabicula ; 



439 Trivia pustulata, 



440 Trivia radians, 



441 Trivia solandri, 



442 Trivia sanguinea, 



443 Trivia pulla, 



444 Trivia subrostrata. 



FAMILY CANCELLARIAD^. 



445 Cancellaria urceolata, 



446 Cancellaria goniostoma. 



FAMILY STROMBIDJa. 



447 Strombus galeatus, 



448 Strombus granulatus, 



449 Strombus gracilior. 



FAMILY TEREBRID.E. 



450 Myurella albocincta, 



451 Myurella hindsii, 



452 Myurella subnodosa, 



453 Myurella rufocinerea ; 



454 Subula luctuosa ; 



455 Euryta fulgurata, 



456 Euryta aciculata. 



FAMILY PLEUROTOMID.E. 



457 Pleurotoma funiculata, 



458 Pleurotoma maculosa ; 



459 Drillift incrassj^ta, 



