CRUSTACEA MALACOSTRACA. IV. 43 



36. Campylaspis intermedia n. sp. 



(PI. Ill, figs. 6 a— 6 i). 



Female (with the marsupium scarcely half-developed). In general aspect nearly intermediate between 

 C. costata G. O. S. and C. verrucosa G. O. S. Carapace seen from above (fig. 6 a) rather oblong, as the pro- 

 portion between breadth and length is about as 3 to 5 ; a good deal of the lateral margins feebly divergent 

 from in front backwards, but anteriorly these margins rather suddenly converge strongly to near the end of 

 pseudorostrum, which is broadly rounded. The ocular lobe about as long as the pseudorostrum in front of 

 the lobe. Seen from the side (fig. 6 b) the carapace is of moderate depth, scarcely half as deep as long including 

 pseudorostrum, which is somewhat produced and a little upturned; the anteroinferior margin is rather 

 oblique, the antennal notch well developed, and the angle below it a little protruding. The sides of the cara- 

 pace show as in C. costata two longitudinal, long ridges separated by a deep depression, which considerably 

 behind the front end is partly interrupted by a low, broad protuberance; besides between the posterior third 

 of these ridges a third ridge, which has its anterior end united with the long lower ridge, but this species 

 differs from C. costata in having several rounded, moderately low tubercles on the upper and about three 

 tubercles on the intermediate ridge. Seen from above, the carapace (fig. 6 a) has in more than its posterior 

 half a longitudinal, a little curved row of about five tubercles on each half not far from the median line, and 

 just behind the outer end of the suture separating the pseudorostrum a large tubercle is very conspicuous; 

 besides some small tubercles are observed on the anterior half. The tubercles, excepting the anterior sublateral 

 pair, are on the whole low and rounded. The two anterior free segments are overlapped by the carapace; 

 they have dorsally no really lamellar expansion. — Abdomen moderately robust, as usual conspicuously 

 shorter than the carapace; the three anterior segments each with a pair of obtuse tubercles. 



Second pair of maxillipeds (figs. 6 c — 6 d) somewhat slender ; carpus with a triangular tooth on the 

 distal inner angle; dactylus with 3 spines, the first strong and rather long but shorter than the third, while 

 the second is very small; propodus with the inner angle somewhat produced, acute, while its terminal spine 

 .scarcely overreaches the third spine of the dactylus. Third pair of maxillipeds (fig. 6 e) with the distal half slender ; 

 second joint serrated on the distal part of its inner margin; ischium with two teeth at the inner end; merus 

 (fig. 6 f) conspicuously less than half as broad as long, its inner margin distinctly concave with several fine 

 teeth, the outer margin a little convex with a large tooth towards the end and a couple of much more proximal, 

 minute teeth ; carpus with some teeth on the outer margin. First pair of legs (fig. 6 g) with the distal halt 

 slender; second joint serrated on the distal part of the inner margin; the following joints without teeth, and 

 merus a little longer but slightly thicker than carpus. Second pair of legs (fig. 6 h) without marginal teeth ; 

 carpus of middle length and slightly shorter than dactylus. -- Tropods (fig. 6 i) somewhat slender; the pe- 

 duncle as long as the two posterior abdominal segments together, slightly more than twice as long as the 

 endopod, with low saw-teeth on the inner margin; the endopod with 5 spines on the inner margin, a very 

 long spine and a quite short one on the end; exopod about as long as, or slightly shorter than, the endopod. 



Length 5.5 mm. (An immature male from Stat. 116 is 5.8 mm.) 



Remarks. C. intermedia is distinguished from C. sulcata by the tubercles on the sides, from < . 



6* 



