^258 CRUSTACEA. 



of the female were convoluted on either side of the medial line of the 

 cephalothorax. 



Figures 8, a, b, plate 88, represent a velvety blue-black specimen of a 

 female, which is near the above in general form. The abdomen differs 

 in having the first and second segments equal in length nearly, the 

 first much the narrower ; the following three lunate segments much 

 shorter in proportion to the length ; the caudal lamellae shorter than 

 twice the length. The cephalothorax is much convex, and ovate in 

 ontline, or nearly oval. The posterior antennae have the second joint 

 one and one-half times the first; the finger about as long as the 

 second ; the claw short. 



This species is near the S.fulgens of Edwards (Crust., hi. 415). 



Sapphirina obesa. 



Lamellce caudales lati subellipticm, latitudine mm duplo longiores, setis 

 brevissiniis, fere obsoletis, una ad apicem internum vix dwpieiendd. 

 Feminse:— Cephalothorax lath subovatus, convexus, 5-articulatus, seg- 

 mentoantico transverso, ultimis duobus duplo brevioribus quam tertwm, 

 quarto ad angulos rotundato, quinto ad angidos subacuto. Compi- 

 cilla remotiuscula, fronte insita. Abdomen h-articulatum, segmento 

 primo brevissimo, tribus sequentibus lunatis. 



Caudal lamellae broad suboval, not twice as long as broad, setas very 

 short, nearly obsolete, one at inner apex scarcely distinguishable. 

 Female: — Cephalothorax broad subovate, convex, five-jointed, 

 rounded in front, segments laterally obtuse, first shorter than broad, 

 last two half as long as third, fourth with the angles rounded, fifth 

 having the angles acute. Conspicilla situated on the front, a little 

 separate. Abdomen five-jointed, first segment very short, having 

 appendages, next three lunate, acute, last longest. 



Plate 88, fig. 9, animal, enlarged. 



Pacific, off Hopper Island, Kingsmill Group, latitude 0° 30' north, 

 longitude 174° east, April 15, 1841. 



Length, one-sixteenth of an inch. Colour, brownish, without 



