﻿CRI'STACEA MALACtJSTKACA. II. ec 



and somewhat narrower than tlie se\entli. Second .se>;nu-nt is al)onl lialf as h)iig as tlie third and 

 tapers ninch in breadth frt)ni tlie anterior to the posterior end; it has a small, oblique \-entral process 

 from the lower front end. Tliird segment with the lateral margins considerabh- converging from the 

 anterior to the posterior angles. Fourth segment with the lateral margins strongly angular consider- 

 ably before the middle and from these angles converging towards both ends, l-'ifth segment sliglith' 

 longer than Ijroad, and its lateral margins strongh- angular somewhat l)ehind the middle; sixth seg- 

 ment with the lateral margins strongly angular still nearer the ])osterior margin; sevcntli segment in- 

 creases much in breadth from the anterior end to rather near the hind margin. — Thoracic legs 

 moderately long. .Second pair (fig. jb) with the seta; short excepting the seta on the posterior margin 

 of sixth joint; fourth joint somewhat longer than the fifth and as long as the sixth; seventh joint 

 with claw only twt>-thirds as long as sixth joint. Third jjair with foiuth joint shorter than the fifth, 

 which is somewhat shorter than the sixth; fourth joint with some minute sinnes on the posterior 

 margin, seta; on fourth and fifth joints short, distal seta on the anterior side of si.xth joint rather long; 

 seventh joint with claw scarce!)- half as long as sixth joint. Three posterior pairs of legs moderatelv- 

 strong (fig. 7c); second joint about two and a half times as long as broad; fourth joint (fig. 7d| with 

 a row of very short, tooth-shaped, small spines along the distal half of its anterior margin and two 

 much larger spines before the end; fifth joint with a close row of small tooth-shaped spines along the 

 major part of the convex front margin, a similar, curved row on the outer side, and a moderately 

 long, very thick spine at the distal end; sixth joint only a little shorter than the two preceding joints 

 combined, moderatel\- stout, with a large number of quite minute denticles along the anterior part, 

 two moderately long and very thick spines near the end and three much longer terminal s])ines, two 

 of which with a few strong teeth on the conca\e margin and the tliird with a number of denticles 

 along the major distal part of the corresponding margin; seventh joint with claw somewhat short, on 

 se\-enth pair less than half as long as sixth joint, and both joint and claw with some few denticles 

 on the concave margin. 



Abdomen broader than seventh thoracic segment, but scarcely as broad as the second, sliglitly 

 longer than seventh segment and half of the sixth combined; its hind margin transverse, feebly an- 

 gular at the middle. — Uropods (fig. je) moderately long, .somewhat slender; eiidopod with the first 

 joint a little longer than the .second; exopod reaches slighth' beyond the middle of .second joint of the 

 endopod, two-jointed, with second joint about two and a half times as long as the first. 



Length of the .single .specimen 4.18""". 



Remarks. 7\ grand is is much larger than any otliei species of this genus found b\- vSars or 

 the "Ingolf", but agrees in this respect with three species established by Dollfus (1897) on specimens 

 taken by the Prince of Monaco. T. graiidis is readily distinguished from the three last-named species 

 b\' various characters (comp. Dollfus' figures) and from all forms seen by me 1)\ the jK-cnliar armature 

 of the posterior pairs of legs. In the shape of the thoracic segments 7". graiidis is somewhat similar 

 to 7! irn-giilaris. but differs widel\- in several other features. 



Occurrence. Taken \>\ the "Ingolf" at a single station. 



South of Iceland: St. 54: Lat. 63"oS' N., hong. 15- 40' W., 691 Im., temp. ;^.9 ; i spec. 



