[TAYLOR] MARINE MOLLUSCA 33 
I do not know of any other record of the occurrence of this eastern 
American species on the Pacific coast. 
36. YOLDIA LANCEOLATA, J. Sowerby, sp, 
Nucula lanceolata, J. Sby., Mineral Conchology, 
Fairly common at Victoria, Nanaimo, etc., and occurring also at the 
Queen Charlotte Islands and in Quatsino Sound (Dawson). 
The “ very large ” specimens recorded from Comox by Dr. Newcombe 
should probably be referred to the next species. 
37. YOLDIA SEMINUDA, Dall. 
Amer. Journ. Conch.,! vol. vii., p. 153 (Nov., 1871). 
This species might be mistaken at first sight for Y. lanceolata, but 
when carefully examined it is seen to be quite distinct. It is a larger 
species than lanceolata, and the diagonal sculpture does not extend 
beyond the middle line of the shell, while in the last named species 
it reaches to the anterior margin. 
Y. seminuda was described from St. Paul’s Harbour, Radiak, 17 fms. 
My specimens were dredged outside Victoria Harbour, and the species 
has not so far been recognized elsewhere in the province. 
38. YOLDIA LIMATULA, Say, sp. 
Nucula limatula, Say, American Conchology, pt. ii., pl. xii. (April, 1831). 
I dredged this species in Departure Bay in 1888, and near Victoria 
in 1891. It is like the two last named species in colour, but lacks the 
diagonal grooves they both possess. 
This shell was identified for me by Dr. Dall. 
39. YOLDIA, species. 
Three fine specimens of a Yoldia that I have not vet identified were 
obtained last year in Sooke Harbour by Professor Macoun. The species 
resembles Y. limatula in colour, but differs in its very peculiar shape. 
40. VOLDIA AMYGDALEA. Valenciennes. 
Zool. Voy. Venus, Mollusea, pl. xxiii., fig. 6 (1846). 
This species has been dredged at Victoria, Departure Bay and 
Comox, but appears to be rather rare. Its dark colour and the absence 
of the diagonal sculpture distinguish it from the preceding species. 



1 The paper in which Y. seminuda and some seven or eight others of our British 
Columbian speciesare described is entitled‘ Descriptions of 60 new forms of Mollusks 
from the west coast of North America and the North Pacific Ocean, with notes on 
others already described.” It was published in the American Journal of Conchology 
for 1871, vol. vii., pp. 93 to 160, plates 13 to 16. 
Sec. IV., 1895. 3. 
