SPIDER CRABS. RATHBUN. 



between, and in line with, the lateral gastric spine and the 

 anterior of the dorsal, branchial spines. It differs from C. 

 goodridgei in the longer spines of rostrum and gastric region 

 (anterior pair), and in the direction of the latter, which point 

 forward instead of outward. 



Genus PLATVMAIA, Mir ft. 

 PLATYMAIA WYVILLETHOMSONI, 

 (Plates iii., iv. and xiv.) 



Platyrnaia wyville-thomsoni, Miers, Challenger Kept., Zool., 

 xvii., 1886, p. 13, pi. ii. 



(Not P. wyville-thomsoni, Dofieiii, Brachyura Valdivia, 

 1904, p. 59, text-figs. 2-5, pis. ii., xx., xxi., xxii., xxiii., 

 xxxix., xliii.. tigs. 5 and 6, pi. 1., figs. 2, 5 and 6 or 

 synonyniical references to Wood-Mason, Aleoek, Chun 

 or Stebbing.) 



The " Endeavour " specimens were all taken in the Great 

 Australian Bight, off Eucla, as follows : 



South by east of Kuela, Long. 131 E. 5 200-250 fathoms ; 

 one male, two females. 



k 



About one hundred miles south of Eucla, 120-1(30 fathoms ; 

 two ovigerous females. 



South by west of Eucla, Long. 126* E., 130-190 fathoms ; 

 one male. 



Sixty to eighty miles west of Eucla, 80-120 fathoms ; one 

 ovigerous female. 



Remarks on the type-specimen. In order to comprehend 

 this species I examined the unique type female at the British 

 Museum in August, 1914. Several discrepancies between the 

 specimen and the figure in the " Challenger " volume above cited 

 were noted. The length of the carapace on the median line 

 is 37.3 mm., the width 35.2 mm., that is the carapace of the 

 figure is somewhat too long. The narrowest part of the 

 rostrum at the constriction, just behind the lateral spine, is 

 4.3 mm., while below r that point the width between the down- 

 ward-pointing teeth is 5.8 mm. The figure docs not repre- 

 sent the inferior width. The propodus of the second ambu- 

 latory leg shows in reality an inner margin slightly concave 

 and more spinous than in the figure, while the outer margin 

 measures 41 mm. and is densely and finely spinulous. The 

 merus joints of all the legs are slightly concave on the inner 

 margin. The merus of the third leg is rough to. the touch. 



