90 



maxillae. Each maxilliped proceeds from a chitinous list (fig. 1 e, h), projecting between the 

 bases of the maxillae. The proximal part of the abdomen two to two and a half times 

 broader than the distal part. Each of the triangular caudal stylets (fig. 1 g, t) has four 

 setae, the foremost of which is short, the apical one moderately long. 



MALE. A well developed specimen is 196 mm. long and - 11 mm. broad — thus 

 good-sized in proportion to the female (fig. 1 c : fig. 1 a). So the body is a good deal longer 

 than broad (fig. 1 i). On the ventral side, stretching from the base of the antennulae outside 

 the maxillae, the maxillipeds and the legs, backward towards the abdomen, and from the 

 appendages towards the lateral outline, are found a comparatively small number of irregular 

 stripes or grooves. On the basal part of the first pair of legs we see some irregular pro- 

 jections and taps; similar though blunter taps or knots are spread more scantily over the 

 dorsal side of the animal, whereas the frontal part is closely covered with larger knots. 

 Antennulae shorter than in the following species. The basal joint of the maxillipeds longer 

 than that of the maxillae and more robust than in the following species. In the second 

 pair of legs the apical spine on the inner branch is frequently somewhat curved, but not 

 hooked. Of the setae on the caudal stylets, the apical one is thick and longer than the 

 others. — A frontal thread was found in a few cases; it was about as long as the animal 

 (fig. 1 c), simple and somewhat dilated towards the distal end. 



EGGS. They are very large (fig. 1 d compared with fig. 1 a), and are deposed in a 

 large, loose, irregular lump, or in two (or very rarely three) lumps; the greatest number 

 found is forty-two, the usual number is about thirty. 



LARVA (fig. 1 1). Length of the body (except caudal setae) -22 mm., which shows 

 that it is longer than the male, though its volume is somewhat smaller. Cephalothorax 

 oval, somewhat longer than broad. The front has a transverse band which curves backward, 

 ending at a short distance from the base of the antennulae. Antennulae 3-jointed; olfactory 

 seta at least double their length, reaching a little behind the middle of the cephalothorax. 

 Antennae of medium length, 3-jointed; basal joint broad and longer than broad, about the 

 same length as the second joint; third joint short, terminating in two or three setae, one of 

 which is stout and as long as the second and third joints together. Second and third joints 

 of the maxillipeds of about equal length. The longest seta at the hindmost angle of the 

 first abdominal segment a little longer than the second segment. Each caudal stylet fur- 

 nished with five setae, one of them a little longer than the abdomen, two of the others a 

 little longer than the last segment plus the caudal stylets. (See besides the diagnosis of 

 the genus). 



POST-LARVAL DEVELOPMENT. Unknown. 



HABITAT. On Metopa Bruzelii (Goes) from two localities near the western coast 

 of Greenland. In a glass labelled: »Godthaab, deep water [probably 40—60 fathoms], in 

 Sertularia, HolbelL, were found numerous specimens of Met. Bruzelii (Goes) and of M. sinuata 

 G. O. Sai'S, as well as a number of specimens of M. longicomis Boeck, M. longimana Boeck 



