a? 



UROPTYCHUS PUBESCENS. 



101 



M, edtvardsii (Wood 



* 



of the Bay of Bengal, but 



easily distinguished from that species by the lateral margins of the carapace 

 which in Wood-Mason's species are divided mto two lobes, whilst in M. 

 dersoniana they arc entire. 





UROPTYCHUS Hend. 



Biptychus A. M. Edw., Bull. Mus. Couip. ZooL, VIII. 01, 1880 {mm, pmoc) 

 Uropiychus IIend., Ecp. Cliallcngcr Auomura, p. 173, 1888. 



:i 



*. 



Uroptychus nitidus oecidentalis Fax. 



Plate XXVI., Fig. 1, T. 



Uroplychus niiidus oecidentalis Fax.^ Bull Mus. Comp. ZooL, XXIV. 192 1893 



BlptycJms nitidis, var. oceidentalis A.M. Edw. et Bouv., Ami. Sci. Nat,, ZooL, 7^'"« Ser XVI 306 1894 



Differs from the typical Uroptychus nitidus (A. M. Edw.) f as follows : the 

 branchial regions arc more swollen, giving to the posterior half of the cara- 

 pace a more convex lateral outline ; the rostrum is shorter, the chelipeds 

 shorter and more robust, the fingers shorter in proportion to the length of 

 the basal part of the propodite ; the branchial regions arc more distinctly 



"ned. It approaches in some respects U. uncifcr (A. M. Edw.), in which 

 the rostrum and chelipeds are still shorter. U. poMtus Hend., another closely 

 related form, is distinguished by its short antennal acicle. 



Length of body of a female, 29 mm. ; length of carapace, 15 mm. ; length 

 of rostrum, 4 mm. ; breadth of carapace between antero-lateral spines, 5 mm.; 

 breadth across the branchial region, 10 mm.; length of chelipcd, 44.5 mm. 

 (merus, 11 mm., carpus, 12.5 mm., chela, 17.5 mm., dactylus, 6 mm.). 



Station 3384. 458 fathoms. 2 males, 2 fem. ovi"-. 



!■ 



Uroptychus pubescens Fax. 

 riate XX VL, Fig. 3, 3% 3K 



Uroplychus pubescens Fax., Ball. Mus. Comp. ZooL, XXIV. 192 1893. 



Diplychus pubescens A. M. Euw. oi Bouv., Ann. Sci. Nat., Zuol' l^'"^' Scr., XVI. 30G, 1894. 



Carapace, withont inckiding rostrum, broader than long, pubescent; 



a 



transverse row of spines across the gastric region from one side of the cara- 

 pace to the other j Lateral border of carapace spinose ; the anterior margin 



* Aim. Mag. Nat. Hist., filli Scr., VII. 201, 1891. 

 f Bull. Mus. Comp. Zo61., VIII. 62, 1880. 



A^ 



