223 



edge denticulated only in the posterior part, dactylus of exactly same 

 structure as in A. odontonyx, carpal process very narrow, and reaching somewhat 

 beyond the palm. Pereiopoda scarcely differing in structure from those in 

 the preceding species. Last pair of uropoda reaching a little beyond the 

 1st pair, basal part much longer than the rami. Telson very elongated, 

 conically tapering, tip tridentate. Colour in the living state of the animal 

 not yet stated. Length of adult ovigerous female scarcely exceeding 2V2 mm. 



Hemarls. — The present new species is easily distinguishable from 

 the preceding one, not only by its much inferior size, but also by several 

 well marked, structural details. Thus the form of the cephalon is rather 

 different, as also that of the last pair of epimeral plates of metasome; 

 moreover the gnathopoda are not nearly so powerful, and the anterior ones 

 wholly want the nodiform denticle of the dactylus, present on both pairs in 

 A. odonfonyx. 



Occurrence. — I have hitherto only met with this species in a single 

 locality, viz., at Vadso, Finmark, where it occurred rather sparingly in a 

 depth of 30— GO fathoms, together with Giianopsia arcfica to be described in 

 the sequel. 



Gen. 4. Qitanopsis, Gr. 0. Sars, n. 

 Syn .■ Aiiijihilochus, Boeck (part). 



Form of body about as in the preceding genus. Cephalon rather 

 deep, and, as in most other Amphilochidse, produced in front to a curved 

 rostral projection. Coxal plates of moderate size, 1st pair, as a rule, less 

 rudimentary than in the 2 preceding genera. Antennae generally more 

 elongated. -Anterior lip aliout as in AmphilocUus ; posterior lip with the 

 lobes narrowed in front, and having inside a deep incision, lateral corners 

 narrowly exserted. Mandibles rather strong, with the molar expansion large 

 and protruding, exhibiting the usual fluted, triturating surface, j)alp of 

 moderate size, with the terminal joint elongated and slender. First pair of 

 niaxillsB of much the same stri;cture as in AmphUocJms, palp distinctly 

 biarticulate, with the terminal joint narrowly rounded at the tip, and armed 

 outside the latter with 3 short spines. Second pair of maxillse well-developed, 

 with the inner lobe considerably broader than the outer. Maxillipeds, as a 

 rule, rather stout, basal loljes narrow and elongated, masticatory lobes of 

 moderate size, reaching beyond the 1st joint of the palp, the latter generally 



