No. 466, Survey Mollusca.
GADINIA, Gray.
S. Gen. Rowellia, Cooper.
Animal tentaculis ultra testam porrectis, latis, compressis, margine anteriori rotundato, pectinato; pes mediocris, circularis.
Testa Gadiniæ similis.
Animal with broad flat tentacles, rounded and pectinated in front, projecting beyond the shell; foot moderate, round. Shell as in Gadinia.
G. (R.) radiata, Cooper.
Animal album; testa sub-circularis; apex centralis; color albus vel ex albo virens; superficies XXX costis radiantibus dichotmis induta, per lineas concentricas cruciatis; intus alba vel livida, margine crenulato; fovea siphonalis bene impressa, margo prope extremam foveam parum incisus.
Long. ·90, lat. ·85, alt. ·45.
Animal white; shell sub-circular; apex central or sub-central; color white to greenish externally, internally white, livid or various shades of a light purple; surface marked by about thirty radiating and sometimes dichotomous ribs crossed by irregular concentric lines; internal margin crenulated, the teeth corresponding to the external ribs; muscular scar horseshoe-shaped with a little supplementary scar adjoining the left limb; siponal groove rather strongly impressed, producing a very faint emargination on the edge of the shell.