NO.1302. AMERICAN PARASITIC ARGULIDM-WILSON. 735 



with well-rounded sides; anal sinus cut deeply, slit-like in shape, leav- 

 ing* blunt lobes. 



Anal papilhe small and basal. Anterior maxillipeds with a fleshy 

 lobe or papilla opposite the terminal claw; teeth at the base of the 

 posterior maxillipeds narrow and triangular; those on the l)asal plate 

 very blunt, but ])oth kinds are enormous, compared with the size of 

 the animal. Antenuiy noticeable chiefly for the size of the terminal 

 joint of the second pair, which is about two-thirds as large as the 

 preceding joint. 



Swimming- legs just reaching- the edge of the carapace. The spines 

 covering the ventral surface of the carapace are very large in the 

 frontal region between the antennae and over the anterior submarginal 

 area, but become smaller posteriorly. They are arranged in two or 

 three irregular rows along the sides of the carapace. 



In the males the testes are three-lobed, and there is a conical papilla 

 on the anterior border of the basipod of the third legs. This species 

 is much smaller than Audouin's, being only 7 instead of 15 mm. iji 

 length; no other dimensions given. 



Color a uniform dark green, with three colorless areas anteriorly, 

 one median and two lateral, the median one narrow oblong, extending 

 forward from the brain to the marginal area of the carapace, the 

 lateral ones triangular, one side parallel to the sides of the median 

 area and the lateral eye in the posterior angle. 



Habitat. — Guiana, on the fish called "Aymara." 



(r(^drz5a= found again, i. e., Audouin's species rediscovered.) 



DOLOPS STRIATA Bouvier. 



Gyropeltis striata Bouvier, 1899^ 

 Dolops striata Bouvier, 1899'^. 



Carapace elliptical, a little longer than wide. Abdomen narrower 

 than in the preceding species, triangular in shape, with well-rounded 

 sides; anal sinus cut deeper than in reperta, leaving the lobes rather 

 more pointed. Anal papilla? small and basal. The protuberance 

 opposite the claw on the anterior maxillipeds is very small; the l)asal 

 plate of the posterior maxillipeds has three truncated teeth, of which 

 the outer one is much larger than the other two. 



The two spines on the ventral surface between the bases of these 

 maxillipeds and a little posterior to them are very large, as wide as 

 they are long, and have a broad, squarely cut tip. 



The swimming legs reach considerably beyond the edge of the cara- 

 pace. The spines on the ventral surface are numerous in the region 

 between the antennas, and are arranged in distinct transverse lines. 

 Back of the antennte, in the lateral areas of the carapace, they are 

 grouped in oblique lines, directed outward and backward. These 

 spines wholly disappear opposite the anterior swimming legs, and 

 there are none on the posterior portion of the ventral surface. 



