100 " ENDEAVOUR " SCIENTIFIC RESULTS. 



South of Mt. Cann, Victoria, 55-70 fathoms; E.6079; one 

 male. 



South and south-west of Mt. Cann, Victoria, 70-100 

 fathoms; E.6116; two males, two females. E.6117 ; one 

 female, with encrusting Serpulid. 



South-south-west of Mt. Cann, Victoria, forty miles, 70 

 fathoms; E.6276; two females, one immature, one ovigerous, 

 both very small. 



East of Bass Strait, 70-80 fathoms; E.4820; two males, 

 two females. 



Twenty miles east of Babel Islands, Bass Strait, 65-70 

 fathoms; E.5159; one young male. 



Off Babel Islands, Bass Strait, 50-300 fathoms; E.4785; 

 one male. 



South-west of Eucla, about long. 127 E., Great Austra- 

 lian Bight, 80-120 fathoms; E. 3661 and 3662; two males, 

 two females. 



Sixty to eighty miles west from Eucla, Great Australian 

 Bight, 80-120 fathoms; E.3167 ; one male, one female. 

 P.3552; one female. 



South Australia; E.4438; one male. 



Measurements. Male holotype, length of carapace 21.7, 

 width (approximate) between tips of lateral spines 30.2, 

 width just in front of lateral spines 27, fronto-orbital width 

 17.8, front 8.3 mm. Largest female (E.6117), length of 

 carapace 22.3, width between tips of lateral spines 30.4, 

 width just in front of lateral spines 28.2, fronto-orbital 

 width 18.4, front 8.6 mm. One of the two smallest females 

 (E.6276) is ovigerous, carapace 5.8mm. long. 



Description. Carapace very convex fore and aft. A 

 short, obliquely transverse branchial ridge near lateral 

 tooth; postero-lateral angle of dorsum also marked by a 

 smooth ridge. Two transverse depressions, one in front of, 

 the other behind, the cardiac region. Three antero-lateral 

 projections; the first or orbital tooth is blunt, produced 

 little in advance of orbital angle, its inner slope short and 

 continuing the supraorbital margin, outer slope convex; 

 second tooth longer and with a sharp tip, directed forward ; 

 third projection a stout, acuminate spine, directed obliquely 

 outward. Front transverse, or nearly so, double-edged, 

 upper edge less advanced than lower. Antennal sinus well 

 defined. Supraorbital fissure obscure. Suborbital margin 

 crenulate; inner angle nearly as advanced as the front. 



