31 



6. Leptognathia manea, G. o. s.-n-s. 



(PL XIV, tio. 3). 

 Leptognathia (?) man-ca, G. 0. Sai-s, 1. c. p. 44. 



Characters. 9 Body slender and elongated, more than 8 times 

 as long as it is broad, with the segments marked off by conspicuous constrictions, 

 posterior half slightly attenuated. Cephalosome of moderate si/e, with the side 

 edges regularly curved. First free segment of mesosome much larger than the 

 last one, and somewhat dilated in front. Metasome equalling in length the hist 

 2 segments of mesosome combined, and rather narrow, subcylindric in form, with 

 the terminal segment short and obtuse. Superior antenna' with the 2nd joint much 

 shorter than the outer 2 continued, ('helipeds of moderate si/e, with the hand 

 scarcely dilated, oblong oval in form, and somewhat longer than the car- 

 pus, fingers shorter than the palm. The 3 anterior pairs of perieopoda exactly 

 alike both in si/e and structure, with the dactylus slender, setiform; the 3 posterior 

 pairs having the basal joint but slightly tumefied. Pleopoda wholly absent. Uro- 

 poda about half the length of the metasome. inner ramus Inarticulate, outer one 

 uniarticulate and sc.arc.ely half as long. Length 2.00 mm. 



Remarks. The total absence (in the female) of pleopoda is a very 



striking feature, which at first put me in some doubt as lo the true generic 

 relation of this form. Having, however, on a closer examination, found it to 

 agree fairly well in all other essential characters with the species of the present 

 genus, I prefer to retain it in the genus Leptognathia, as a, somewhat anoma- 

 lous species. 



Occurrence. I have found this form in two widely separated places on 

 the Norwegian coast, viz., in Eidsfjord, west of Listerland, and at ApehaT. Nam- 

 dal. In both places it occurred in rather small numbers at depths of 100 150 

 fathoms. 



Gen. 5. TanaOpSlS, O. 0. Sa.s. i, 



ic Characters. Body comparatively robust, with the metasome 



unusually large and composed of (i well-defined segments. Eyes wanting. Su- 

 perior antenna? in female distinctly 4-articulate. Oral parts very poorly developed. 

 Mandibles extremely small, and rudimentary, unarmed, and without a trace of 

 molar expansion. 1st pair of maxilla 1 with the masticatory lobe much curved. 

 Maxillipeds with the masticatory lobe very short, transverse, palp slender and 



