-I r ^vh ir — -j^rw- 



r A , —jiz. J-- 



i 



LEPTOLITIIODES ASFER 



47 



appendages, bounded by the opposite crests of these segments, and forming 

 a passage for the admission of water to the gills. This orifice is similar to 

 that seen in EcUnocerus fommindus Stimps., but it is not so perfectly formed. 



The apex of the abdomen (in the female) is turned to the right (most 

 strongly in the larger specimen) ; the marginal plates are wanting on the 

 left side ; all the abdominal appendages excepting the first are aborted on 



the right side. 



Lcn-th, 64 mm. ; breadth, 75 mm. ; length of cheliped, 73 mm. ; length 

 of first "ambulatory leg, 92 mm. (merns, 24 mm.; carpus, 20.5 mm.; propo- 

 dite, 18 mm.; dactylus, 18.5 mm.). 



I H 



i; 



Station 3384. 458 fathoms. ■ 1 fem. 



ii 



3394. 511 



U 



1 



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ii 



OVlg, 



The previously known species of Paralomis comes from the Straits of 



■A 



I : 



Magellan. 



h A 



LEPTOLITHODES Benedict MS. 



\ 



As before stated on page 45, a specimen of Paralomis granulosa in the 

 United States National Museum clearly demonstrates the generic diversity 

 of that species and the two forms assigned to Faralomis by Henderson in his 

 report on the Anomura of the '-Challenger" Expedition. In a paper 

 which will be published, before the present memoir, in the seventeenth vol- 

 ume of the Proceedings of the United States National Museum, Mr. J. E. 

 Benedict has established the genus LcpioUlhodes for the reception of Puralomis 

 acukala Hend. and allied species. To this genus both P. aspera and P. longipcs 

 of my preliminary report belong. 



Leptolithodes asper Fax. 



Plate VIII. 



Paralomis aspera Fax., Bull. Mus. Comp. Zool., XXIY. 164, 1893. 



Carapace pentagonal, as broad as long; gastric, cardiac, and branchial 

 reo-ions well defined and prominent ; the posterior portion of the postero- 

 lat^'eral margin is raised into a rounded irregular ridge, and there is a round- 

 ish hump on each branchial region in front of the posterior margin of the 

 carapace ; whole surface of carapace and abdomen thickly beset with papillae 

 or tubercles, each one of which is encircled with a crown of stiff seta). 

 trum short,' indistinctly tripartite, multispinose, lower part armed with as 



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Eos- 



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