COCKERELL : ON TWO CALIFORNIAN NUDIBRANCHS. 121 



Veponicella himerta, n, sp. 



Ground colour ochreous, with fine and closely-set black reticula- 

 tions ; perinotum light brown; hyponotum drab colour, with small, 

 irregular, black markings; foot-sole yellow, with exceedingly fine, 

 transverse lines. 



Length (in alcohol) 51, breadth 2omillim.; foot-sole 3; hyponotum 

 9 millim. broad. Female generative orifice situated on the right side 

 2 '5 millim. from the foot-sole, 22-5 from the right lower tentacle, and 

 25 from the posterior end of the body. 



Hah. — ]\It. Mausson, 2 — 3000 feet. Tonkin (H. Fruhstorfer). 

 Tijpp in my collection. 



NOTES ON TWO CALIFORNIAN NUDIBRANCHS. 



By T. D. a. COCKERELL. 



Copyphella iodina (Cooper). 



Aeolis iudinea, Cooper, Proc. Cal. Ac. Sci., 1862. 



This beautiful animal is found on the mud-flats at San Pedro, Cal., in 

 some numbers. By some misfortune, I did not succed in finding any 

 myself, but .Mrs. Bancroft gave me one which she obtained at Dead 

 Man's Island, San Pedro, July 19. This example was 32 millim. long, 

 the body brilliant purple (this colour is changed to bright crimson by 

 caustic potash) ; the branchial papillae pale salmon colour, very 

 numerous, the separate tufts not obvious. Genital orifice on the 

 right side about 7 millim. from anterior end (dead specimen). True 

 tentacles deep salmon red, purple only at base; oral and foot-tentacles 

 purple, oral tentacles with the apical half (at least) white. 



By its striking and peculiar colours, this is clearly the Californian 

 representative of the European C. landshun/ii. However, lawhhuriiii 

 is a smaller animal, with the papillae in obvious tufts; the dorsal 

 tentacles are coloured like the oral, and about the apical fourth is white. 



Cooper says nothing about the dentition. The teeth are in about 

 19 rows, three in a row, as usual in CorypJicIla. The median teeth 

 have a large central denticle, and 11 to 14 denticles on eacli side. 

 Lateral teeth with small slender denticles (19 to 21) crowded on the 

 lower two-thirds of inner face. 



This differs from kinddnvjii by the broader median denticles and 

 much more numerous lateral denticles, of median tooth ; also the 

 much more numerous denticles, and much longer outer basal process, 

 of lateral teeth. 



