GAMMARIDEA. ggj 



Plate 66, fig. 3 a, animal, enlarged ; b, mandible ; c, d, maxillae ; e, 

 maxillipeds ; /, lip ; g, anterior feet, more enlarged. 



Coral reef of Pitt's Island, the northern of the Kingsmills. Col- 

 lected, April 30, 1841. 



Length, four lines. Greenish or nearly colourless. The third joint 

 of the superior antennae is half as long as the second. The setae of 

 the joints of the flagellum are rather longer than the joints. As to 

 the existence of an appendage, we are not certain. The inferior an- 

 tennae are little longer than half the superior, the base is about as long 

 as first two joints of the superior. The upper side of this pair, to apex, 

 is densely hirsute ; the flagellum is but little longer than the last joint 

 of base. The hand of the first pair of legs is hardly one-fourth the 

 width of the hand of the second, but the form is nearly the same. 

 The second has a few setae at apex, and at a point above a short dis- 

 tance from the apex ; and the finger closes against the under surface, 

 which is a little uneven, and hirsute in tufts. The finger is half as 

 long as the hand; the carpus is acute below, and hardly longer than 

 broad. Third and fourth pairs equal and similar ; sixth and seventh 

 pairs about equal, the sixth shorter; there are tufts of short bristles 

 on the edges; the basal joint is large, especially of seventh pair, and 

 serrulate behind. The second pair of stylets extends a little farther 

 back than the first. The third was mutilated in the specimen. 



Amphiihoe pubescens, Dana, Proc. Amer. Acad. Sci., ii. 214. 



GAMMARUS ? INDICUS. 



Feminae : — Epimerce mediocres. Segmentum abdominis quartum postich 

 acutum. Antennas \rnce inferioribus duph longiores, corpore paulo 

 breviores, bad breviore quam flagellum, articulo primo longiore, setis 

 numerosis breviusculis : 2da3 tenues, basi lmarum paulo longiores, basi 

 vix longiore quam flagellum. Manus Ima 2daque parvos, oblongas, 

 supra rectiusculw, apice angustiores, infra hirsutos, digito mediocri. 

 Pedes 3tii Clique tenues, §tis vix breviores, Qti Imique subaiqui, btis 

 longiores, articulo lmo latissimo, setis brevibus propter apicales longas. 

 Styli caudales postici 2dos vix superantes. 



241 



