Westwoodilla 251 



Maxiila 1, oiiter plate with 8 spines, 2*^ Joint of palp naiTower thau 1^* 

 (Schneider). Guathopods 1 and 2, 5*^ Joint distally widened, alike in botli pairs, 

 6'^ Joint oval, longer tlian 5*'^ (Sars) or equal to it (Schneider), palm in 

 gnathopod 1 much longer than hind margin, in gnathopod 2 little longer. 

 Peraeopods 1 — 4, 6^^ Joint narrow linear, sparingiy setose, finger about as 

 long. Periieopod 5, 2*^ Joint broad, obliquely quadrate, 4*^ and 5*^ subequal, 

 ß^'i rather longer. üropod 3, rami a little longer than peduncle, each carrying 

 2 spinules. Telson quadrate, nearly as broad as long, slightly narrowed 

 at truncate apex, which has 2 setules. Colour yellowish orange mottled 

 with reddish brown; antennae banded with orange. L. 9 6 mm. 



Arctic ücean and North-Atlantic (Xorth-Norway). Depth 36 — 5ö m. 



4. W. acutifrons (0. Sars) 1892 Halimedon a., G. 0. Sars, Crust. Norwaj-, v. 1 

 pJ329 1. 116 f. 1. 



Rather slender. Frontal process rather long, little arched, gradually 

 tapering to an acute horizontally projected rostral apex reaching beyond 

 1*^^ Joint of antenna 1. Side-plate 1 much expanded and produced foi-ward, 

 5*^ less deep than 4*'\ Eyes oblong oval, light red, covering centre of 

 frontal process. Antenna 1 in o , 2^ Joint longer than 1^*, flagellum shorter 

 than 2^ and ^«^ combined, 10-jointed. Antenna 2, ultimate and penultimate 

 joiuts of peduncle subequal, flagellum less than the 2 combined. Guathopods 1 

 and 2 feeble. Gnathopod 1, ö"^^ Joint distally much expanded, b^^ rather longer, 

 more than twice as long as broad, palm very oblique, longer than hind margin. 

 Gnathopod 2, 5**^ Joint less expanded, 6*^ narrower than in gnathopod 1, 

 equal in length to 5*^^ Joint, palm scarcely longer than hind margin. Peraeo- 

 pods 1 and 2, 6**^ Joint slightly expanded at setose distal end, finger nearly as 

 long. Peraeopods '6 and 4, finger longer thau 6*^ Joint. Peraeopod 5 very long, 

 2*^^ Joint broad above, 5*'^ and 6*^ joints subequal, longer than 4"^^ üropod 3, 

 rami narrow, spinuliferous, longer than peduncle. Telson oval, apex not 

 very broadly rounded. Colour whitisli, faintly tinged with yellow; ova rose- 

 coloured. L. Q 8 mm. 



Xorth-Atlantic (Apelvaer [Namdal], Trondhjemsfjord). Depth 90 — 270 m. 



5. W. rectirostris (DellaValle) 1893 Halimedon r., A. Dclla Valle in: F.Fl. 

 Neapel, r.20 p. 537 1.4 f. 6: t. 33 f. 1-15. 



Rather slender. Frontal process elongate, horizontally projected. Side- 

 plate 1 greatly expanded distally and produced forward, 5*'^ much broader 

 than 4*^1 and nearly as deep. Eyes small, rounded, prominent, bright vermilion, 

 at apex of frontal process, leaving a very minute rostral point (a Single eye is 

 represented on t, 33, with no dividing line). Antenna 1 in 9 , 2*^ Joint as long as 

 1^*, 3^ more than half leng-th of 2*^, flagellum shorter thau peduncle, 10-jointed. 

 Antenna 2, ultimate and penultimate joints of peduncle subequal, flagellum in 9 

 as long as the 2 combined, 12-jointed. Guathopods 1 and 2 said to be almost 

 exactly alike, 5*^^ Joint triangulär, as long as 6*'\ hinder distal angle dilated, 

 not produced, 6*^ Joint almond-shaped. In the figures the angle of 5**^ Joint 

 is as usual more broadly dilated in gnathopod 1 than in gnathopod 2, and 

 the palm of 6^^ Joint is much longer than hind margin in gnathopod 1, 

 and little longer than it in gnathopod 2, but the 6^^ Joint of gnathopod 1 is 

 2Y2 times as long as broad, and in gnathopod 2 only twice. Peraeopods 1, 2 

 and 4, finger subequal to 6*^* Joint, in peraeopod 3 longer than it. Peraeopod 5, 

 2*1 Joint broad, 4*'^ longer than 5*^^ or 6*'\ finger shorter than 6^*^. üropod 3, 



