146 



THE FUR SEALS OF THE PRIBILOF ISLANDS. 



Cobb's second (1889, pp. 149, 150) article is for the most part a reprint of page 44 

 of bis first article. 



Jiigerskiold (1894, pp. 474-476) calls attention to the resemblance of A. KilltentliaUi 

 to A. simplex; be Inclines decidedly to the view that the two forms are identical, but 

 in the absence of specimens of .4. KWkenthalii for comparison he reserves judgment. 

 Stossich (1896, p. 53) cites .4. Kulentlmlii as a distinct species, gives a condensed 

 diagnosis taken from Cobb's description, and adds riioca harhata as a host. This new 

 host, for which Stossich does not give his uuthorit}^, is probably an error, and might 

 have occurred while referring to Cobb's second .article. 



From the above review it will be clear that A. KiU^enthaUi bears a close resem- 

 blance to .4. simplex; we agree with Jiigerskiold that the two forms are probably 

 identical; in fact, we think there can be scarcely any doubt regarding this point. 

 Cobb's median symmetrical papilliv of the dorsal lip would correspond to the small 

 anterior bilobed projection of A. simplex, as his figure (see fig. 62) shows; the armed 

 papilla of each ventral lip would correspond to dentigerous ridge of the ventral lips of 



Fig. 6:t. 



A. simplex; the other essential characters are practically the same in both forms. Not 

 having specimens of either .4. simplex or A. KUkenthalii, however, we follow Jiigerskiold 

 in retaining the species as distinct, hoping that the originals of A. K'dlcenthalii maybe 

 found and reexamined. . 



C. Data concerning tbo dentigcrons ridge wanting. 



7. ASCARIS SIMILIS, Baird, 1853. Sp. inq. 



(Fig.s.fir)-fi9.) 



1853, Ascarix similis. Baikd, Catsilogne Eutozoa Brit. Mus., p. 19,pl. i, figs, la-rf.— Baikd, 18.53, Proc. Zool. 

 Soc. LoiKlou, Part XXI, p. 18.— Baiud, 1855, Ann. and Mag. Nat. Hist., 2 scr., XV, pp. 69, 70.— 

 DiESiNc;, 1860, Sitziingaber. Akad. Wiss. Wien, XLII, no. 28, p. 656.— VoN LiNsrow, 1878, 

 Compendium der Helminthologie, p. 44.— Stos.sich, 1896, Boll. Soc. adriatica Sci. uat. Trieste, 

 XVII, p. 63. 

 Diagnosis.- Intermediate lips absent; lips of .about etiual size, slightly ])rojecting beyond the 

 margin; dentigerous ridge (?); body attenuated more toward anterior than toward posterior extrem- 

 ity, which is thick, round, and obtuse ; wing extending along the whole length and becoming thicker 

 and stronger at inferior extremity; cuticle with fine transverse stria-. 



Male" (female?): About 50'"'" long by 2">'>' broad; straight to within a short distance of tail, 

 which is iutiected; of a whitish color. 



