660 CRUSTACEA. 



SlRIELLA BREVIPES. 



Cavapax fronte prominule triangulatus. tegmentum abdominis posti- 

 cum spinulis ceque circumdatum; lamellae caudales pauhdo inoequales, 

 segmento caudali longiores, ambce longh ciliatce. Oculi pergrandes. 

 Pedum rami thoracicorum fere cequi. Flagellum antennae secundce 

 thorace paulo longius. 



Carapax low triangular in front. Last abdominal segment evenly 

 margined with spinules. Caudal lamella but little unequal, longer 

 than caudal segment, both long ciliate. Eyes quite large. Branches 

 of thoracic feet nearly equal. Flagellum of second antennae rather 

 longer than thorax. 



Plate 44, fig. 3 a, animal, enlarged ; b, extremity of abdomen. 



Pacific, south of the Kingsmills, near Sherson's Island, March 24 

 1841. 



Length, one-tenth of an inch. Colour, slightly reddish or flesh-red. 

 Body, nearly cylindrical. Last two abdominal segments of nearly 

 equal length. Hairs of caudal lamella? shorter than the lamella, 

 Eyes nearly as large in diameter as the abdomen at base, on short 

 pedicels. [Antenna were broken in the specimen examined, except- 

 ing the outer or second pair.] Joints of flagellum of second pair of 

 antennae oblong, a short hair or two on each. Only the short apical 

 joint of the base of these antennae extends beyond the eyes; this last 

 character and the much larger eyes, nearly equal branches to legs as 

 well as abdomen, distinguish this species from the gracilis; and the 

 same characters, excepting the size of the eyes, remove it from the 

 vitrea. The legs are shorter than usual. The infero-anterior angle 

 of the carapax is hardly acute. 



Genus LOXOPIS. 



Carapax rostratus. Oculi elongato-ovati, lateraliter spectantes, lenticidis 

 totis externi-lateralilus parce obliquis. Antennae externae squama 



