179 



97. Hermannella finmarchica, Scott. 

 (PI. CI). 



Hermannella (?) finmarchica, Scott, Ann. Mag. Nat. Hist. Ser. 7, Vol. XI, p. 28, Pi. IV, 



figs. 1419. 



Specific Characters. Female. Body comparatively slender, with the 

 anterior division oblong oval in outline, greatest width only sligtly exceeding 

 half the length and occurring somewhat in front of the middle. Cephalic 

 segment of moderate size and exhibiting behind a well-marked transverse 

 suture defining the cephalon from the 1st pedigerous segment, frontal margin 

 narrowly rounded. Last segment of trunk rather broad and, as in H. prehen- 

 silis, exhibiting on each side, just behind the insertion of the free joint of 

 last pair of legs, a well-marked dentiform projection. Tail scarcely attaining 

 half the length of the anterior division; genital segment comparatively large, 

 exceeding in length the remaining 3 segments combined, and having the 

 anterior part rather dilated and sharply defined from the short cylindrical 

 posterior part. Caudal rami of moderate length, being about as long as the 

 last 2 segments combined, and slightly divergent; seta of outer edge attached 

 somewhat dorsally at about the hind third part of the ramus; the 2 middle 

 apical setae rather slender and elongated. Anterior antennae scarcely as long 

 as the cephalon, and having the first 2 joints comparatively broader than in 

 the preceding species. Posterior antennae resembling in structure those in 

 H. parva, being rather feeble and imperfectly prehensile, with the apical claws 

 slender, setiform. Maxillae with the masticatory lappet securiform and finely 

 crenulated outside; palp with 1 lateral and 2 apical setae. Anterior maxillipeds 

 of normal structure. Posterior maxillipeds comparatively short and stout, pro- 

 podal joint conspicuously dilated in the middle and provided with 2 small 

 spinules; dactylar joint short, conical in form. Natatory legs comparatively 

 strongly built, with both rami well developed in all the pairs and about equal 

 in size, all the spines pronouncedly dagger-shaped; inner ramus of 1st pair, as 

 usual, with a single such spine, that of 2nd pair with 3, that of 3rd pair with 

 4, and that of 4th pair with 5 spines, all on the terminal joint. Last pair of 

 legs with the free joint of moderate size, sub-cylindrical in shape, and slightly 

 produced at the hind distal corner, apical setae well developed, the inner one 

 the longer. Ovisacs rather narrow and somewhat irregular in form. 



Male, as usual, much smaller than female, and easily recognisable by 

 the greatly tumefied genital segment. Posterior maxillipeds with the propodos 

 somewhat contracted distally, dactylus long and slender, abruptly bent at the base. 



