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STALK-EYED CRUSTACEA. 



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Cymopolia fragilis Eathb. 



Plate VI., Fig. 4, 4\ 



Proc. U. S. Nat. Mus., XVI. 259, 1893. 



Carapace very short and broad, tuberculated, with granules scattered 

 between the tubercles. Front cut into four blunt teeth, the two in the 

 middle prominent, the outer ones short, Superior margin of the orbit cut 

 by two fissures as is the lower margin also ; there is a broad prominent lobe 

 just below the internal orbital angle, with two teeth above it at the angle. 

 The antero-lateral margin of the carapace is five-toothed, counting the promi- 

 nent tooth at the outer angle of the orbit. There are two tubercles on the 

 frontal region, twelve on the gastric, five on the cardiac (four of which are 

 arranged in a transverse row and elongated transversely) ; eight or nine on 

 each branchial, and a carina more or less broken up into tubercles just in 

 front of the posterior margin of the carapace. The eye-stalks are furnished 

 with two blunt tubercles near the edge of the cornea. The chclipeds are 

 small, slender, equal. The third and fourth pairs of ambulatory limbs are 

 very long, the merus joints with a low tubercular carina on their anterior 

 margin and two longitudinal rows of tubercles on their upper face; the 

 anterior distal angle is rounded off and not produced into a spine or tooth ; 

 the anterior edge of the carpi and propodi is sharp, and the upper face of 

 these joints is two-ribbed. Tlie abdomen and sternum are almost smooth. 

 The difference in the shape of the abdomen between this species and the 

 foregoing will be best appreciated by a reference to the figures. 



Length, 7 mm. ; breadth, 11 mm. ; length of ambulatory limb of the 

 second pair, 26.5 mm. (merus, 8 mm.; carpus, 4.5 mm. ; propodus, 7 mm.; 

 dactjdus, 5 ram.). 



•'Station 3369. 62 fathoms. 2 males, 12 fern. ovig. 



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3379. 52 



'a fragilis '^ 



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3 males. 



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1889, off Lower California, in 58 and 71 fathoms. 



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