_, CRUSTACEA MALACOSTRACA. II. 



distal marginal tooth; seventh joint proportionately long, together with the short and thin claw slightly 

 shorter than the sixth joint. 



Abdomen at the middle of the hind margin with a short, protruding plate (fig. 6h), and each 

 angle of the plate produced in a .spiniforui process; the distance between the end of each process and 

 the hind margin is slighth' longer than the breadth of the plate. — Uropods moderately long; endopod 

 two-jointed (fig. 6h), with the proximal joint a little longer than the distal and with some minute 

 spines along its inner margin; exopod a little shorter than the proximal joint of the endopod, two- 

 jointed, with the joints equal in length. 



Length of the single specimen 2.0"'"'. 



Remarks. T. spinicauda is easily distinguished from all other species by the plate with its 

 two spines protruding from the end of abdomen; the uropods are also very characteristic. In several 

 features it is allied to T. Jinmarchicus G. O. S. 



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



Davis vStrait: St. 28: Lat. 65° 14' N., Long. 55° 42' W., 420 fm., temp. 3.5°; i spec. 



33. Typhlotanais grandis n. sp. 

 (PI. V, figs. 7 a— 7 e.) 



Specimen without marsupium, probably an immature Male. Ver)- large and 

 somewhat slender, scarcely six and a half times as long as broad, but especially fifth thoracic seg- 

 ment is a good deal more narrow than carapace or abdomen (fig. 7 a). — Carapace large, slightly' 

 longer than the two following segments combined and somewhat longer than broad; the lateral 

 margins posteriorly convex but their anterior two-thirds converge nearly regularly to the front angles; 

 the anterior end is a little more than half as broad as the carapace somewhat behind the middle; the 

 rostral process is broad, somewhate short, acute. 



Antennuke (fig. 7 b) a little shorter than the carapace. First joint sHghtly longer than the two 

 other joints combined, slightly more than two and a half times as long as deep and, seen from the 

 side, scarcely tapering, seen from above distinctly and regularly tapering from base to end. Second 

 joint a little deeper than long; third joint long, about three times as long as the second and its 

 proximal fourth distinctly thickened above; terminal setae about as long as third joint. - Antennce 

 of normal length and thickness; third joint scarcely expanded; fourth joint a little more than twice 

 as long as the penultimate joint; terminal .seta; a little longer than those of the antennulse. 



Chelipeds (fig. 7b) moderately robust. Basal joint long with the posterior protuberance even 

 a little longer than deep, rounded behind, but its hind margin is somewhat distant from the front 

 lower angle of second thoracic segment; carpus as long as the basal joint, only twice as long as deep. 

 Chela somewhat longer than carpus, three times as long as broad, with the posterior margin straight; 

 movable finger as long as the front margin of the hand; fixed finger near the base conspicuously 

 broader than the movable and with a small tooth a little from the end of the incisive margin. 



Thoracic segments (fig. 7a) increase much in length and decrease considerably in breadth from 

 second to fifth .segment; sixth .segment is slightly longer and a little broader than the fifth, much longer 



