

320 



some other places on the south and west coasts of Norway, in depths ranging from 

 12 to 30 fathoms, muddy bottom. A single male specimen was moreover found in 

 a sample taken by Mr. Nordgaard at Repvaag, East Finmark. 



Fam. 16. Cylindropsyllidae. 



Characters. Body narrow, vermiform, with no distinct boundary between the 

 anterior and posterior divisions, the former not being at all dilated. All segments 

 smooth, without any armature whatever. Rostral projection comparatively small. 

 Anterior antenna with the proximal part composed of 4 well-defined joints. 

 Posterior antennae with a very small, but well-defined uniarticulate outer ramus. 

 Oral parts on the whole normal, except the posterior maxillipeds, which in some 

 cases are very anomalous or quite rudimentary. Natatory legs of comparatively 

 feeble structure; 1st pair not prehensile, and more or less resembling the 3 suc- 

 ceeding pairs. Last pair of legs imperfectly developed, with no visible subdivision. 

 2 ovisacs generally present in female. 



Remarks. This new family is established to comprise the peculiar genus 

 Cylindropsyllus of Brady and some allied genera, all of them conspicuously 

 distinguished by the extremely narrow, vermiform shape of the body. In the 

 structural details some resemblance may be found to exist to certain genera of 

 the family Canthocamptidce, especially to the genus Tetragoniceps Brady; but the 

 1st pair of legs are never prehensile as in that family, and there are also some 

 other features which would seem to preclude a union of these 2 families. In 

 addition to the 3 genera treated of below, the genus Leptocaris of Scott is un- 

 doubtedly referable to the present family. 



Gen. 71. CylindrOpSyllUS, Brady, 1880. 



Syn: Cylindrosoma Brady (name already appropriated). 







Generic Characters. Body slender, cylindrical in form, with rather coarse 

 integuments exhibiting a minutely pitted structure. Rostral projection well defined 



