^"is'.w"'] PHOCKEDTNGS OF THE NATIONAL MUSEUM. 335 



The above example, though imperfect, is in a sultieiently good con- 

 dition, and of sufficient size as to leave no doubt as to the determina- 

 tion. It measures maximum 4.25, minimum diameter 20 millimeters. 



It lias not before been reported outsidti of Peru ami Chile. 



Family AMALTHEIl)^^:. 



(icnnK AMALTHEA 1>(huiiia(lier. 



94. Amalthea barbata .Sowcilty. 

 =. H'ipponijx- barhatiix 8<»werby. 



A single specimen. Porto Grande (Mus. No. 125390). 



Not before reported away from the west coast of the Americas. 



Family NATICID^. 

 Genus NATICA Lainarck. 

 95. Natica porata Reeve. 

 One specimen. Fayal (Mus. No. 125201). 



Superlairiily DOCOOLOSS^. 



Family PATELLIJ)^. 



Geuus Patella Liniid. 



96. Patella rustica Liime. 



Common. Fayal (Mus. No. 125277). 



A good series of tiiis species (»f various sizes, i)oints to the two follow- 

 ing of Drouet's, as probal)Ie synonyms. 



97. Patella Moreleti Drouet. 



Example. Fayal (Mus. No 125200). 



This species is probably nothing more than a- variety and junior of 

 i'. rustica Linne. 



98 Patella Gomesii Droudt. 



One specimen, beach. Fayal (Mus. No. 125200). 



The above example though a beach slu^ll is in tolerable condition; it 

 agrees with Drouet's figure and des(irii)tion. /'. (iomcsii suggests a 

 variety of the Linnean species rustica. 



99. Patella Argenvillii Kraiiss. 



Numerous examples. Island of ^aint Helena (Mus. No. 125412); 

 Cape Town. 



Several tine living specimens of this limpet were detected at St. 

 Helena. It has somewhat the appearance of i*. firanularis, but the 



