ball: mollusca and brachiopoda. 407 



Lima fragilis (pars), Sowerby, Thes. Conch., 1847, 1, p. 86, No. 14 ; pi. 22, fig. 34 

 (only). 



U. S. S. " Albatross," at the Galapagos Islands. Panama, Cuming ; Acapuico, 

 Dall. U. S. N. Mus. 106,884. 



The nomenclature of the Limas is much mixed up, and the range of the species 

 is very great. L. dehiseens Conrad, 1838, is a good species, quite distinct, as 

 Limas go, from L. fragilis. 



L. angulata Sowerby was collected by me at Acapuico, Mexico, though 

 described from Australia. I cannot distinguish the Galapagos shell from North 

 European specimens. 



Acesta H. and A. Ad.\ms. 



Lima (Acesta) patagonica Dall. 



Lima (Acesta) patagonica Dall, Nautilus, June, 1902, 16, p. 16. 



U. S. S. " Albatross," station 2781, southern Chile, on the west coast of 

 Patagonia, in 348 fathoms, mud, bottom temperature 50° F. U. S. N. Mus. 

 95,462, 96,453, 96,931, 96,927, and 122,734. Also at station 2785, in 449 

 fathoms, mud, temperature 47°. 



This has been called L. excavata variety, and also referred to as a variety, of the 

 Japanese L. goliath Sowerby. The young shells are beautiful little polished 

 translucent objects, with well-developed teeth on the hinge line, the formula 



beiner . These teeth become obsolete or nearly so in the mature 



^ Z 010 Z 010 ^ 



shells. 



Lima (Acesta) agassizii Dalu 



Plate 16, figure 1. 



Lima (Acesta) agassizii Dall, Nautilus, June, 1902, 16, p. 16. 



XJ. S. S. " Albatross," station 3354, in the Gulf of Panama, in 322 fathoms, 

 mud, bottom temperature 46° F. U. S. N. Mus. 106,890. 

 Only one valve of this species was obtained. 



Lima (Acesta) diomedae Dall. n. sp. 



Plate 7, flRure 2. 



Shell short-ovate, of moderate size, white, with a pale yellowish periostracum, 

 equivalve, inequilateral, radiatcly sculptured, polished; hinge line very short, 

 straight, with a very oblique ligameutal pit in the narrow, triangular, flattened 

 area ; beaks very low, hardly rising above the area, situated opposite the posterior 



