484 CBABS OF THE FAMILY LITHODIDJE— BENEDICT. vol. xvii. 



LITHODES BREVIPES, M i 1 n e - E d war d s and Lucas. 



LHliodes hrevipes, Milne-Edwakos aud Lucas, Arch. Miis. Hist. Nat., Paris, ii, 

 p. 465, pis. xxiv-xxvii, 1841. 



LUhodes canit.vchaticus, Richters, Abh. Senck. Natur. Ges., xiii, p. 404, tigs. 9 

 and 10. 

 lu the work cited Dr. Kichters describes and tigures young LUhodes 

 as the young of L. camtschaticKs. There are four specimens of the same 

 form in the collection; one obtained by Mr. William Palmer at St. Paul 

 Island, where Dr. Richters' specimens were collected; two by Dr. L. 

 Stejneger at Bering Island, and one dredged by the Albatross at station 

 3558 in 25 fathoms. The largest specimen is a cast shell washed up by 

 the tide; it is 34 mm. in length and 31 mm. in width. The smallest si)ec- 

 imen is 1(5 mm. in length by 14 mm. in width. In most respects the 

 largest of the young is a miniature of the adult L. hrevipes., but contrary 

 to the rule in seven species of LUhodes the young of Avhich are in the 

 collection, the young of L. hrevipes, if I have not mistaken it, have but 

 a bare indication of spines, or rather of the place where spines are to be, 

 the spines being indicated on the carapace of the smallest by small 

 granules better seen with a lens, while in the largest specimen the 

 spines are indicated by tubercles, and at the summit of the tubercles 

 there is not the slightest indication of the sharji, horny-tipped spine 

 of the adult L. hreripes. The movable antennal spine of the adult is 

 bifurcate; in the young it is bitid. 



L E P T O L I T H () D E S , new genus. 



Paralomis (part), Henderson, Cliallenger Report, xxvii, p. 44, 1888. Not Pai-a- 

 lomifi, White and Stimpson. 

 White established the genus Paralomis in 1856 by thus designating 

 LUhodes (jrunulatus of lloiuhron and Jacquinot. An examination of a 

 single specimen of that species from Sandy Point, Straits of Magellan, 

 shows it to belong to White's previously established genus Lchinocerus. 

 The name Paralomis as a synonym of Eehinocerus being no longer 

 available, I propose the name LeptolUhodes for those species having 

 long and angular ambulatory legs and comparatively stout chelipeds. 

 The species of the genus will then be as follows, in theorder of descrip- 

 tion: Leptolithodes aculealus (Henderson), L. asper (Faxon), Ij. lomji- 

 pes (Faxon), and the two species here described from the west coast 

 of the United States and British Columbia. 



LEPTOLITHODES MULTISPINUS, new species. 



The carapace is about as broad as long; the areolations are well 

 detined On the median line at the summit of the gastric region there 

 is a sharp sinne about four mm. in length. The lateral margins are 

 armed with from twelve to sixteen spines about three mm. in length. 

 In the young and in some of tlie adults there are small spines on the 

 branchial region. A semicircular line of six or seven spines marks the 



