158 



THE FUR SEALS OF THE PRIHILOF ISEANDS. 



coutaius very i)Oorly ]>reserved specimens, but the ileterniiuation is evidently correct. 

 A bottle labeled ^^Ascaris osculata, Phoca grovnlandica''^ contaius both A. osciilata 

 (B. A. I., ISTo. 2835) aud A. decipiens (B. A. T., No. 2843). 



Specimens from Eumetopias Stelleri. — In tbe mateiial brought to Wash- 

 ington by the seal commission are three bottles of worms taken from the stomachs of 

 three specimens of Eumetopias StiiJeri. The worms were collected by Mr. Lucas in 

 August, 1890, on St. George Island, Bering Sea, and two of the lots represent very 



Fig. 88. 



F\n. m. 



heavy infections. One lot (tag of seal commission 82) contained both Ascaris decipiens 

 (D.S.N.M., No. 2822) and A. osculata (U.S.N.M., No. 2767), while tlie other two lots 

 (tag of seal commission 84=U.S.N.M., No. 27(54, and tag 85 = U.S.N.M., No. 2760) 

 apparently contained only Ascaris osculata. 



Our determination of these worms (figs. 84, 85) as Ascaris osculata is based upon 

 the following details: 



Intermediate lips present (figs. 80, 87); lips with lateral projections; oesophageal 

 and intestinal caeca present; cuticular bands without finer striae; cuticular folds 

 back of lips (fig. 88). 



