431 



half the length, in the posterior ones more oblong in form, palm in both 

 pairs evenly curved, and defined posteriorly by a slight angle bearing a 

 single small spinnle, dactylus long and curved. Pereiopoda rather slender, 

 but of moderate length, the last pair not exceeding ' 2 /z of the length of the 

 body; basal joint of antepenultimate pair rather narrow, that of last pair 

 considerably broader. Last pair of uropoda with the rami narrow lanceolate 

 in form, the inner somewhat larger than the outer. Telson comparatively 

 less prolonged than in the other species, and having on each side, in front 

 of the middle, a rather fully developed auditory seta, outer part conically 

 tapering, cleft extending about to the middle of the telson. Colour somewhat 

 variable, and generally very beautiful, the body being all over more or less 

 distinctly variegated with partly confluent patches of a magnificent carmine, 

 having between them small specks of a golden yellow; antennse and legs 

 banded by the same pigment. Length of adult female scarcely exceeding G 

 mm. ; that of male somewhat less. 



Remarks. This is a very distinct species, easily distinguishable 

 from the other forms, both by its very short and stout body, and by several 

 other characteristics mentioned in the above diagnosis. Also the colour is 

 rather peculiar and very beautiful. 



Occurrence. I have met with this form rather frequently in 



numerous places off the Norwegian coast, from the Christianiafjord to Vads0. 

 It is generally found in moderate depths, ranging from 30 to 50 fathoms. 

 Occasionally it even ascends to the sublittoral region, being found in about 

 10 fathoms. 



Distribution. Greenland (Hansen), the Kara Sea (Hansen). 



Fam. 18. Calliopiidae. 



Body, as a rule, slender and compressed, with well-developed metasome 

 and urosome. Cephalon of moderate size, and but little produced in front, 

 postantennal corners more or less prominent. Coxal plates small, or of 

 moderate size. Antennas slender, sometimes greatly elongated, the superior 

 ones generally without any accessory appendage. Oral parts normally 

 developed. Gnathopoda in most of the forms rather feeble in structure, and 

 more or less distinctly subcheliform. Pereiopoda, as a rule, slender and 

 elongated, with the basal joint of the 3 posterior pairs laminarly expanded, 

 Branchial lamellae simple; incubatory lamellae large and broad. Last pair 



