Nassa insculpta, Cpr. n. s. State Collection, No. 1008.
N. t. satis elevatâ, compactâ, tenuiore, elegantissimâ, marginibus spiræ subrectis; albescente, rufo-carneo varie maculatâ; anfr. nucl. iv. lævibus, normaliter augentibus, apice minuto, satis extante; norm. v. subrotundatis, suturis satis impressis; aperturâ subrotundatâ, canali acute reflexâ; totâ superficie sulculis æquidistantibus, quarum x. anfr. penult. apparent, insculptâ; anfr. norm. ii. primis costulis quoque radiantibus circ. xvi. haud expressis ornatâ; labro rotundato, extus varicoso, intus sulcidentato; labio valde calloso, supra basim seu parietem expanso, haud extante, intus ruguloso.
Long. 0·80, long. spir. 0·43, lat. 0·46, div. 45°.
Hab. Catalina Island, 30-40 fm.; 15 mostly alive, but few mature; animal white; Cooper.
This singularly beautiful species probably belongs to the section Zeuxis, H. & A. Adams. The callus is slightly reflexed in the best specimen.
Genus Amycla, H. & A. Adams, 1858. (auctum.)
? Amycla chrysalloidea, Cpr. n. s. State Collection, No. 613.
? A. t. parvà, eleganter effusâ, marginibus spiræ utrinque excurvatis; albidâ, rufofusco concinne punctatâ seu tinctâ; interdum strigâ albida subsuturali, rufofusco tesselatâ; anfr. nucl. iii. lævibus, haud tumidis, apice declivi; norm. v., t. adolescente planatis, dein tumidioribus, suturis distinctis; totâ superficie elegantissime tenuiter sulcatâ, sulcis æquidistantibus, anfr. penult. circ. xx.; aperturâ flexuosâ subpyriformi; canali oblique sinistrorsum truncatâ, axi quasi umbilicatâ; labro intus acuto, postice sinuato, deorsum quasi tumidiore, intus vii-dentato; columellâ tortâ; labio antice rugis paucioribus interdum munito.
Long. 0·37, long. spir. 0·22; lat. 0·14; div. 25°.
Hab. San Pedro, 1 on beach; San Diego, 30, some alive in 8 fms. on sand, in upper part of bay. Cooper.