OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 261 



Genus Macrocceloma, Miers. 



1879. Macrocceloma, Miers, J. Linn. Soc. London, vol. xiv. p. 665. 



1886. ,, Miers, Rep. Voy. " Challenger," vol. xvii. part xlix. p. 79. 



1901. „ Rathbun, Bull. U.S. Fish. Oomm.for 1900, vol. ii. p. 73. 



Macrocceloma concavus, Miers. 



1886. Macrocosloma concava, Miers, Rep. Voy. " Challenger" vol. xvii. part xlix. p. 81, pi. x. 



figs. 2, 2a-b. 

 1898. Macrocceloma concavum, Rathbun, Pr. U.S. Nat. Mus., vol. xxi. p. 576. 

 1901. „ „ Rathbun, Bull. U.S. Fish. Comm. for 1900, vol. ii. p. 75. 



In this species the carapace is deeply concave upon the hepatic regions, " the 

 spines of the rostrum are short, in the adult less than one-fourth the length of the 

 carapace, they are nearly straight, divergent, and separate by a triangulate inter- 

 space." The arrangement of the tubercles on the somewhat damaged carapace of 

 the Scotia specimen appears also to answer the description given by Miers, and the 

 third maxillipeds and limbs agree with his account and illustrations, with this excep- 

 tion, that in our specimen the finely denticulate inner margins of the fingers in the 

 chelipeds leave a gap only quite close to the hinge. The length of the carapace 

 measured from the base of the rostral spines is 29 mm., the spines themselves 

 5 mm., the breadth at the eyelobes 20 mm., and at the widest part to the rear 

 23 mm., not including the lateral spines which are here outstanding. 



Locality.— -Lat. 18° 24' S., long. 37° 58' W. ; depth 36 fathoms; Station 81, 

 December 20, 1902. 



For the gender of the specific name see Knoivledge, vol. xxxiii., No. 504, p. 259 ; 

 and No. 509, p. 470, 1910. 



Family Parthenopice. 



1834. " Parthenopiens " (tribe), Milne-Edwards, Hist. Nat. Crust., vol. i. p 347. 



1847. Parthenopidee, White, List Crust. Brit. Mus., p. 41. 



1901. „ Rathbun, Bull. U.S. Fish. Comm. for 1900, vol. ii. p. 79. 



Genus Lambrus, Leach. 



1815. Lambrus, Leach, Tr. Linn. Soc. London, vol. xi. pp. 308, 310. 



1895. „ Alcock, J. Asiat. Soc. Bengal, vol. lxiv. p. 259. 



1901. „ Rathbun, Bull. U.S. Fish. Comm. for 1900, vol. ii. p. 79. 



Lambrus verrucosus, Studer. 



1882. Lambrus verrucosus, Studer, Abhandl. K. Ak. Wiss. Berlin, vol. ii. p. 9, pi. i. figs. 2a, 2b. 

 1886. „ „ Miers, Rep. Voy. " Challenger," vol. xvii. part xlix. p. 93. 



The species is notable for the very deep furrows which separate the tuberculate 

 median ridge of the carapace from its tuberculate branchial regions. The spinulose 

 rostrum is more produced than in Sttjder's figure, and the chelipeds are more 

 verrucose and dentate in the Scotia specimen than in that which Studer represents. 

 The eyes show minute warts both on and below the cornea. The species belongs to 



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