1006 



CRUSTACEA. 



Plate 69, fig. 1 a, animal, enlarged; b, front view of head; c, supe- 

 rior antennae; d, inferior antennae; e, extremity of abdomen. 



Antarctic Seas, latitude 68° south, longitude 94° west. 



Length, eight lines. Thoracic segments seven, subequal. Fifth 

 abdominal segment very short. Last segment quite small, triangular. 

 Terminal caudal stylets longest, nearly as long as abdomen, first pair 

 longer than second, but not extending as far back as third pair. 



Antennary area rather small, broader above, occupies more than 

 half the height of the head, and less than half its width. 



Two anterior pairs of legs are cylindrical towards apex and pointed, 

 fifth joint longer than fourth, and fourth longer than third ; at apex 

 a few short setae. The hand in third and fourth pairs has a few very 

 short setae on the palm, and the finger one or two minute setae on the 

 inner side. The long tarsus or finger of fifth pair appeared to have a 

 minute claw at apex. The sixth and seventh pairs are rather long 

 and nearly equal ; there are several short spines on inner margin of 

 fourth joint, besides a few on the other joints. The third pair of 

 abdominal legs is smaller than the preceding. 



Subfamily PHORCINiE. 



Genus PHORCUS, Edwards. 



Phorcus hyalocephalus. 



Caput fronte rotundatum et proclivum. Segmenta thoracis primum 

 secwulumque partim celata. Pedes Stii itique tenues, cequi. Pedes 

 5ti fere corporis longitudine, articido idtimo longiore, acuto, quarto 

 breviore quant 'dtius. Pedes 6 to" elongati, 5tw breviores, articulo lmo 

 grandijere elliptico, 2do parvulo, Ztio subelliptico, ad extremitatern 

 profundi excavato, apice postico acuto anticoque obtuso, r oto puree lotir 

 giore quam 4:tus, intus subtiliter serrulato; ungue brevi. Pedes 1m 

 tenues, coxd valde breviore quam pars reliqua. 



Head with the front rounded, and front surface oblique downward 

 and outward. First and second segments of thorax nearly con- 

 cealed. Feet of third and fourth pairs equal, slender. Fifth pair 



