662 



small. The 3 pairs of pereiopoda moderately strong, with the propodal joint 

 somewhat expanded, palm exceeding half the length of the joint. Colour in 

 the living state of the animal not yet stated. Length of adult female 15 mm., 



of male 27 mm. 



Remarks. I cannot identify this form with any of the earlier de- 

 scribed species. It is somewhat intermediate in character between C. septen- 

 Irionalis and C. microtiibercnlata, yet differing from either of them in several 

 points. It may be chiefly recognized by its extremely slender and narrow 

 body, the comparatively elongated superior antennae, and the acute, undivided 

 cephalic tubercle. 



Occurrence - - A few specimens of this form was found among C. sep- 

 tentrionalis, collected, I believe, off the Finmark coast. 



10. Caprella Loveni, Boeck. 



(PI. 238, fig. 2). 

 Caprella Loveni, Boeck, Crust, am ph. bor. & arctica, p. 196. 



Male. - Body unusually short and robust, with the back smooth, or 

 only exhibiting slight traces of tubercles. Cephalosome with an obtuse pro- 

 minence in front of the cervical impression ; 2nd body-segment scarcely longer 

 than the 3rd. Eyes small, orbicular. Superior antennae comparatively short, 

 but little exceeding l /s of the length of the body, joints of the peduncle 

 somewhat expanded and finely ciliated on the edges, 3rd joint shorter than 

 the 1st, fiagellum half the length of the peduncle, and composed of about 11 

 articulations. Inferior antennae of the usual structure. Anterior gnathopoda 

 very short and stout, with the propodos rather broad in proportion to its 

 length. Posterior gnathopoda likewise unusually stout, and originating some- 

 what beyond the middle of the corresponding segment, basal joint rather 

 short and slightly serrated anteriorly, propodos very large and broad at the 

 base, outer part tapering, palm densely hairy, and produced in front to a 

 triangular lappet succeeded by a short dentiform projection, the two being defined 

 by a narrow sinus, posterior angle rather prominent, dactylus strong and 

 curved. Branchial lamellae very large, orbicular. The 3 pairs of pereiopoda 

 short and stout, with the propodal joint rather expanded. Colour in the 

 living state of the animal not yet stated. Length of adult male 12 mm. 



The above characterized form is undoubtedly that de- 

 scribed by Boeck as C. Lovti/i. It has been considered by Dr. P. Mayer as 

 only a variety of C. septentrionalis, and this view is also adopted by Prof. 



