44 



THE VOYAGE OF H.M.S. CHALLENGER. 



branched hairs upon the basal joint; in this they agree with Se rol is iximdoxa and the 

 Australian s^iecies of the genus. 



The opercula have the exopodite divided by an oblique suture. 



The exopodite of the gill cqypendage is bifurcate. 



The uropoda are attached close to the termination of the caudal shield, and extend 

 a little way beyond it ; they are comparatively large and foliaceous, and furnished with 

 numerous branched hairs. 



Station 304, December 31, 1875; lat. 46° 53' S., long. 75° 12' W. ; 45 fathoms; 

 bottom, green sand. 



• Station 313, January 20, 1876; lat. 52° 20' S., long. 67° 39' W. ; 55 fathoms; 

 bottom, sand. 



Station 314, January 21, 1876; lat. 51° 35' S., long. 65° 39' W. ; 70 fathoms; 

 bottom, sand. 



Station 315, January 26, 1876; lat. 51° 40' S., long. 57° 50' W. ; 12 fathoms; 

 bottom, sand, gravel. 



Station 316, February 3, 1876 ; lat. 51° 32' S.,long. 58° 6' ^Y. ; 4 fathoms; bottom, 

 mud. 



4. Serolis latiffons, White (PL II. figs. 1-4). 



Serolis latifrons. White, Li.st Crust. Brit. JIus., 1847, p. 106. 

 Serolis latifrons, Miers, E. J., Ann. and Mag. Xat. Hist., 1875, p. 74. 

 Serolis latifrons, Miers, E. J., Cat. New Zealand Crust., 1876, p. 117. 

 Serolis latifrons, Smith, BuU. U. S. Nat. Mus., 1876, vol. iii. p. 63. 

 Serolis latifrons, ^Miers, E. J., Phil. Trans., 1879, e.xtra vol., p. 204. 

 Serolis latifrons, Studer, Th., Archiv f. Naturgesch., 1879, p. 26. 



This species was named and described by AVhite from specimens obtained during the 

 voyage of the "Erebus" and "Terror"; one of these specimens is preserved in the 

 British Museum, and was dredged at Eendezvous Cove, Auckland Islands. Miers first 

 described the species from specimens, brought home by the Transit of Venus Expedition 

 from Kerguelen Island, and a more detailed description of the same species is to be 

 found in Studer's Beitriige zur Kenntniss niederer Thiere von Kerguelensland.^ 



A number of specimens were dredged by the Challenger at Christmas Harbour, 

 Kerguelen, 25 fathoms, and two others which present some dififerences from the tj-pical 

 form were dredged in deeper water (210 fathoms) ofi" Possession Island. 



"Without enteriirg into any systematic description of this species, which has abeady 

 been sufficiently done by the above mentioned authors, I may add here a few details. 



Studer describes the largest specimens as attaining a length of 40 mm. and a breadth 

 of 30 mm. ; these are e\'idently females, which he says are 1 to 2 mm. less than the 



• Archiv f. Naturgesch., he. cif., p. 2C. 



