M vi UO-TK VCA. ill. 47 



. 'ii tlu- three following segments the lateral margin is angularly bent, and the King process 

 iim that angle; on third and fourth segments, but not on the second, a very small process is 

 found in front of tin- large process, and behind the latter process the margin has three or four small 

 processes on second and third segments, but only two on the fourth (fig. 12 c). Fifth and sixth seg- 

 ments each with .1 MTV long lateral process and a very small process in front of its base, but behind 

 it the rounded coxa is seen; seventh segment only with a rather short lateral process. First segment 

 has a median dorsal process, which is extremely long, somewhat thick, denticulate and directed up- 

 wards and a little backwards (a large portion of the process hast been lost in my specimen); each of 

 the other segments, excepting the fifth, has also a median process, but the six dorsal processes decrease 

 | much in size backwards, so that the process on sixth segment is rather short; fifth segment has 

 a minute median denticle. 



First pair of legs (fig. tad) robust, but deviating somewhat from those in the preceding forms; 

 tilth joint is nearly longer than deep, with three teeth and two long articulated spines on its lower 

 margin: Mxth joint a little more than twice as long as deep; with two somewhat long spines on the 

 prehensile margin; seventh joint with claw not much shorter than sixth joint 



Abdomen - not including its basal segment is not much longer than broad (fig. iae). 



h lateral margin from somewhat from the base to the uropods armed with 12 moderately long, 



di-tinctl\ curved, spiniform, acute processes. The eud flatly rounded with a small tooth between the 



terminal and the lateral margin, while between this tooth aud the uropod the latter margin has some 



minute teeth. 



Length of the specimen ri mm. 



Remarks. P. pulchruni agrees with the other northern forms of Pleurogonium in all more 

 ini]M>rtant features, but it is abundantly distinguished by the numerous processes on thorax, abdomen 

 aud peduncles of antennulae and antennae. 



Occurrence. Taken by the "Ingolf at a single station. 



West of Iceland: Stat 8: Lat 6356' N., Long. 244o' W., 136 fath., temp. 6-0; i spec 



Pseudomunna n. gen. 



Description. General aspect of the body nearly as in Muntm, Ocular protuberances low, 

 rounded. Antennuke (PI IV, fig. i b) with third joint of the peduncle elongate; flagellum in the male 

 (probably also in the female) long with a good number of joints. The four proximal joints of the 

 antenna: thicker and much longer than in Mnnnn (fig. i ui: squama minute, rounded (the remainder of 

 the antenna- lost in my specimens). Mandibles (fig. i c) in the main as in Mmnm. with the molar 

 process snbcylindrical, but the palp consists of a single, somewhat long, slender joint Maxillipcds 

 (fig. idl with all parts longer and more narrow than in A/unna; second joint with lobe about two 

 and a half times as long as broad; fourth and fifth joints somewhat feebly expanded, and each longer 

 than broad; epipod lanceolate, more than twice as long as broad. 



Thoracic segments and coxse as in Afitnna. - - First pair of legs (fig. i e) differ much from 

 MM nun; fifth joint nearly twice as long as the fourth or the sixth joint, with many long and robust 



