122 CALYPTR^A. 



gata, Reeve (fig. 88). A specimen of this species was collected 

 (dead) at the island of Inagua, Bahamas, by Dr. J. J. Brown, 

 and is in the museum of the Philadelphia Academy. 



C. INTERMEDIA, d'Orb. PL 35, figs. 89, 90. 



Orbicular, thin, whitish, longitudinally costate, inner margin 



of the lamina reflected over the blade. 



Peru. 



I know nothing of this shell, said to be rare. Is it an 

 aberrant young C. radians ? 



Unfigured Species. 



C. SCUTUM, Lesson (C. TENUIS, Gray said to be a syn.). 



JV. Zealand. 



C. VENTRICOSA, Carp. (= C. RADIANS?) Mazatlan. 



C. PHLYCTIPHERA, Rochebrune. Senegambia. 



Subgenus SIGAPATELLA, Lesson, 1830. 



C. PILEOLUS, d'Orb. PL 35, figs. 91, 100. 



Thin, smooth, with revolving distant riblets, thin, diaphanous, 



white. 



Patagonia, Falkland Is. 

 C. HELICOIDEA, Sowb. PL 35, figs. 92, 93. 



Whorls oblique, divaricately costate, orange-brown. 



Hab. unknown. 

 C. LATERALIS, Sowb. PL 35, figs. 94, 95. 



Divaricately rugosely ribbed, whitish stained and radiated 

 with chestnut. 



Hab. unknown. 

 C. CALYPTR.EIFORMLS, Lam. PL 35, figs. 96-99. 



White or yellowish white, marked by growth-lines, spire often 

 light violaceous, covered by a thin fibrous yellowish epidermis, 

 interior white, more or less stained or blotched with violet. 



Australia, New Zealand, ?Viti Is., etc. 



Lamarck described this species as a Trochus, and Deshayes in 

 removing it to the genus Calyptraea, changed the specific name 

 to Lamarckii. I have thought it best to restore the original 

 name, although rather objectionable. In no case could Deshayes' 

 name be used, for the next in priority is Sowerby's equally 

 objectionable C. comma-notata ; then follow C. Novae- Zelandiae, 



