1018 



CRUSTACEA. 



secundd pernio oblongd, angustiore, subrectangulatd. Pedes tertii quar- 

 tique tenues. Pedes hti §tis parce longiores, 7 mi debiles, coxa plus 

 duplo longiore quam pars reliqua. Coxce 6 posticm subcequw. 



Head nearly round. Thorax distinctly seven-jointed. Posterior or 

 second pair of antennae naked, first joint short, second and third 

 long and equal, fourth very small, not oblong, the following part 

 slender and flexible, about as long as third joint. Abdomen with a 

 triangular and obtuse extremity. Feet all naked. Hands of first 

 pair broad, hardly oblong, inferior apex triangular ; hands of second 

 pair a little oblong, narrower, subrectangular. Feet of third and 

 fourth pairs slender. Fifth pair longer than sixth. Seventh weak, 

 coxa more than twice as long as following part. Six posterior coxae 

 subequal. 



Plate 69, fig. 6a, animal, enlarged; b, head, in upper view; c, 

 inner antennse; d, outer antennas; e, mandible; /, first pair of legs; 

 g, second pair ; h, extremity of abdomen. 



Pacific, near Sunday Island, north of New Zealand. Collected, 

 April, 1840, from the cavities of Salpas. 



Length, four lines. Colour, ochreous to brownish yellow. Body 

 depressed. Head rounded, and in vertical view the front forms a 

 very obtuse angle, and a narrow line is seen separating the facets of 

 the two sides. Pigment black or brownish black, occupying about 

 half the width of the head in a lateral view. First two thoracic 

 segments much shorter than following. Last abdominal segment 

 oblong, and its triangular apex longer than broad. The stylets 

 hardly extend farther backward than extremity of abdomen, and the 

 second pair falls short of it. The claws of the feet are very short. 

 The hands of the four anterior feet are made of the fourth joint, and 

 the finger of the fifth with a very minute claw (the sixth) at apex. 

 The fifth, sixth, and seventh pairs decrease in length in order. The 

 antennas are seldom seen exserted. Coxae of seventh pair of legs not 

 smaller than of sixth ; both are compressed but not very broad. 



