from the Vancouver District. 427 



ct gtriis subobsoletis cincta, suturis valde impressis ; basi rotun- 

 data, obtuse angulata, striis ssepe evanidis spiralibus ornata, testa 

 adulta circa umbilicum magnum, infundibuliformem, vix angu- 

 latum, sajpe tumidiore, medio obtuse impressa; apertura sub- 

 quadrata, parum declivi ; columella subarcuata. Long. *16, long, 

 spir. -07, lat. -16, div. 70°. 



Hab. Neeah Bay {Swan)-, Lower California, on Haliotis 

 {Rowell). 



27. Gibbula lacunata. 



G. testa parva, fusco-purpurea, solidiore ; marginibus spirse valde 

 excurvatis ; anfractibiis nucleosis normalibus, postea iv. subpla- 

 natis, suturis distinctis, apice mamillato ; subleevi, circa basin 

 vix angulatam striolata, striolis spiralibus distautibus ; apertura 

 suborbiculari, panim declivi ; labio juxta umbilicum constrictum, 

 quasi lacunatum, lobato ; columella callositate parva umbilicum 

 constringente. Long. -11, long. spir. "05, lat. * 1 1, div. 80°. 



Hab. Neeab Bay {^Swan). 



28. Gibbula funiculata. 



6. testa parra, elevata, compacta, fusca; marginibus spirse excur- 

 vatis ; anfr. vi., baud tumidis, suturis parum impressis ; lirulis 

 crebris rotundatis undiquc cincta, quarum v. in spira monstrantur; 

 interstitiis parvis ; basi rotundata, baud angiUata ; umbilico parvo, 

 baud cariuato ; apertura suborbiculari, parum declivi ; columella 

 vix arcuata. Long. •24, long. spir. *! 1, lat. '2, div. 70°. 



Hab. Neeah Bay {Swan), specimen unicum. 



29. Hipponyx cranioideg. 



n. testa valde planata, majore, albida; vertice nucleoso? ... ; testa 

 adulta apice interdum subcentrali, scepius plus minusve postico ; 

 laminis incrcmenti confertis, undique rapide augentibus ; striis 

 radiantibus fortioribus, confertissimis, laminarum margines sa^pe 

 crenulantibus ; margine acuto ; cicatr. muse, angusta, margini 

 contigua, regione capitis miuore, ssepe dextrorsum torsa ; epi- 

 dermide ?. . . Long. -85, kt. 75, alt. -3. 



Hab. Neeah Bay {Swan). 



30. Bivonia compacta. 



B. testa satis magna, ssepe solitaria, purpureo-fusca, spiraliter ple- 

 rumque satis rcgulariter contorta, obsoletim cancellata sen sculp- 

 tura fere evanida ; testis tenacissime adhserente. Long, (plerum- 

 que) '7, lat. '3, diam. apert. '1. 

 Hab. Barclay Sound; abundant on Pachypoma gibberosum 



{Swan). 



Belongs to Bivonia, Gray (not Morch). Has the aspect of 



Petaloconchus macrophragma on a large scale, but is entirely 



destitute of internal laminae. One specimen had a faint colu- 



