270 



BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



Hosts. — Primary : Colymbus cristatus and Podiceps cristatus/ sec- 

 ondary: Unknown; see S. pectinifera, p. 266. 



Location. — Germany. 



Morphology. — Streptocara (p. 264) : Head (fig. 333 a and b) with 

 2 lips and with finely denticulated but inconspicuous collar, not far 

 posterior to which are 2 cervical papillae, pluridentate (as figured 

 by Mueller they have at least 5 points). 



Male 11 mm. long by 360/x wide. Four pairs of large pedunculated 

 preanal papillae (fig. 333<?) ; 7 pairs of postanal papillae, of which 

 5 are large and lateral, the other 2 pairs small, ventral, situated be- 



Figs. 332-333. — 332, Streptocara decora, a, Anterior end ; ~b, male 

 tail. After Dujardin, 1845. 333, Streptocara recta, a, Dorso- 

 ventral and b, lateral view of head ; c, male tail ; d, spicules. 

 After Mueller, 1897 



tween the papillae of the most posterior lateral pair. Spicules (fig. 

 333c?) unequal and dissimilar, the one 490/a long, slender, with a 

 wide lateral membrane in its distal half, the other 250/* long, strongly 

 developed, " cork-screw " shape, according to Mueller. 



Female smaller than male, according to Mueller (neither he or 

 Linstow give the length). Tail end rounded. Vulva not salient, 

 dividing the body length in ratio of T : 4. Size of eggs not given. 



Life history. — Unknown; see ,6'. pectinifera, p. 266. 



Distribution. — Europe ( Germany ) . 



STREPTOCARA STELLAE-POLARIS (Parona, 1901) Skrjabin 191Gb 



Synonyms. — Histiocephalus stellae-poUaris Parona, 1901; Yseria 

 stellae-polaris (Parona, 1901) Gedoelst, 1919. 



Llost. — Primary: Fulmarus glacialis; secondary: Unknown; see 

 $. pectinifera, p. 266. 



Location. — Not given. 





