4 T)r. P. P. Carpenter on new Forms of MnUusca 



radiatim vix oniata ; epidcrrnide Isevi, tenui, fugaci ; costa pidmo> 

 nali iiitiis et extus valde conspiciia, tuineiite ; vertice obtuso, 

 pleruiiKjue ad qiiiidrantem, interduin ad truiitein totins loiigitu- 

 dinis sito ; iiitus intense uigro-fusco, niargiue acuto. Long. "40, 

 lat. -33, alt. -17. 



Hub. Neeah Bay (Swan). 



This genus, which culminates in western tropical America and 

 at Cape Horn, is not known in California. Tiie Vancouver spe- 

 cies resembles ^. lateralis and its congeners, but differs in having 

 an enormous lung-rib and no colour-rays. 



16. Mupalia {Kennerleiji, var.) Swannii. 



M testa 3/. Kennerleyi typicfe simili, sed jugo fornicate, baud cari- 

 nato ; omniiio rubida, sculjitura mult) iniiius expressa ; areis late- 

 ralibus vix definitis ; latera versus subgrauulata ; dorsum versus 

 liiieis jugum versus proeedeiitibus, interstitiis puiictatis ; sinu 

 postico latiore ; limbo pallii lato, coriaceo, vix piluloso. Long, 

 2-4, lat. 1-, div. r_'()°. 



Hub. Tatooche Island [Swan). 



23. Margarita Cidaris, A. Ad. 



3/. testa magna, conica, Turcicoidea, tenui; albido-cii.erea, nacreo- 

 argentato; aufr. nucleo5is?...(decollatis), norm, vii., t ubplanatis ; 

 suturis alte insculptis ; superficie spirae tota valide tuberculosa, 

 seriebus tribus, alteris postea intercalantibus ; peripheria et basi 

 TGtundatis, earinatis ; carinis circ. viii., hand acutis, irregularibus, 

 scabris, baud tuberculosis ; lacuna umbilieali vix conspicua ; aper- 

 tura subrotundata ; labro tenuissimo ; labio obsoleto ; columella 

 arcuata. Long. 1*1, long. spir. "Gj, lat. vo, div. GO". 



Hab. Neeah Bay [Swan). 



INIr. A. Adams suggested the above expressive name for this 

 very remarkable and unique shell. 



25. Gibbula parcipicta. 



G. testa solidiore, parva, conica, pallida, purpureo-fusco varie nebu- 

 losa et maculata ; anfr. v., rotundatis ; carinis ii. valiiMs in spira 

 se monstrantibus, minore intercalante ; interstitiis subsuturalibus, 

 sublaevibus, inter carinas obtuse decussatis ; lira peripberica de- 

 fmita, ssepe in spira se monstrante ; ba?i valde rotundata; lirulis 

 basalibus circ. v. rotundatis, subdistaiitibus ; apertura subeirculari; 

 columella arcuata ; umbilico majore, infundibuliformi, baud augu- 

 lato. Long. "14, long. spir. '07, lat. •13, div. 70°. 



Hab. Neeah Bay (Sw-'fl/.j ; Santa Crux (/?o«;i?//). 



26. Gibbula succinda. 



G. testa parva, subelevata, solidiore; livida, testa jnn. strigis angustis, 

 creberriniis, fusco-pnrpureis peuicillata, testa adulta niaculis qiio- 

 que magiiis nebulosa ; aulV. v., subquadratis; liris obtusis mediuiiis 



238 



