65 



13. Diastylopsis resima (Kr0yer). 



(PI. XLV1I.) 

 <'uia resima. Kroyer, Nat. Tidsskr. new series, Vol. II, pp. 1<>5 & !iOi>, PI. II, ii.- s . 2a. yi>. 



Syn : Diastylis resima (auctorum) 



Specific Characters. Female. Body comparatively short and clumsy, 

 with the anterior division, seen dorsally, oblong oval in form. Carapace rather 

 large, though scarcely twice as long as the exposed part of the trunk, dorsal 

 face evenly vaulted, frontal lobe rather broad, with a double row of small den- 

 ticles along the middle (3 in each row), lateral parts with a row of 3 similar 

 denticles on each side of the fronlal lobe, surface otherwise perfectly smooth; 

 pseudorostral projection rather large and abruptly upturned, nose-like, with a 

 number of long plumose setse issuing from the tip and diverging in a radiating 

 manner; lower edges of carapace coarsely denticulate in their anterior halves, 

 the 2 distal denticles placed somewhat more widely apart, the foremost one 

 rather strong and occupying the antero-lateral corner, being defined from the 

 pseudorostral projection by a slight sinus. The 3 posterior pedigerous segments 

 remarkably flattened above, with the epimeral parts abruptly recurved and very 

 large, rounded behind; dorsal part of 3rd segment very narrow, band-shaped. 

 Tail (exclusive of the terminal appendages) scarcely as long as the anterior 

 division, segments simple, unarmed. Superior antennse with the peduncle more 

 or less bent upwards, 1st joint armed at the end on each side with a strong 

 spine, accompanied above by a plumose seta, last joint about the length of 

 the other 2 combined, and carrying along the outer edge 9 strong plumose setse. 

 First pair of legs about the length of the carapace, basal joint scarcely more 

 than half as long as the remaining part of the leg, and armed in its distal 

 part below with 3 strong spiniform projections, the middle one especially being 

 very prominent, penultimate and antepenultimate joints of about equal length, 

 last joint considerably shorter; 2nd pair not attaining even half the length of 

 the 1st, basal joint about the length of the remaining part of the leg and fringed 

 with a limited number of long plumose setae, antepenultimate joint scarcely at- 

 taining the length of the last 2 combined ; 3rd and 4th pairs very strongly built, 

 and considerably larger than the 2nd, carpal joint unusually short, lamelliform, 

 and fringed along the inner edge with 6 strong, unciliated setaB. Uropoda with 

 the outer ramus almost the length of the stem, and clothed along the outer edge 

 and at the tip with numerous setse increasing in length distally, inner ramus con- 

 siderably shorter than the outer, and narrowly attenuated, with only 3 spinules 

 inside (1 on each of the 3 joints), apical spine long and slender. Telson scarcely 



9 Crustacea. 



