PLATE XXI. 



FIG. III. III. 

 PATELLA RETICULATA. 



RETICULATED MASK LIMPET. 

 SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Small, ash colour, reticulated. Vertex perforated. 



P. Larva reticulata. Patella parva cinerea, vertice perforata. 



Da Costa Br. Conch, p. 14. sp. 7. 

 Patella Gr^ca. Striated. Penn. Br. Zool. No. 153. tab. 



89. fig. 153. 

 Patella clathrata. Klein. Ostrac. p. 116. — 284. No. 2. 



List. H. Conch, tab. 521. fig. 2. ? 



Pennant says, this species inhabits the west of England. The 

 specimens in Da Costa's collection were also fished up near Wey- 

 mouth, in Dorsetshire. This is a rare Shell, and is not known to in- 

 habit any other of the British coasts. 



This Shell is about three quarters of an inch in length, half an 

 inch in breadth, and one quarter of an inch in heighth. The out- 

 side is deeply reticulated, or wrought with prominent longitudinal and 

 transverse ridges. The vertex inclines to one end, and is perforated ; 

 its aperture is of an oblong form, and about one tenth of an inch in 

 length. 



