1881.] THE SURVEY OF H. M.S. 'alert.' 71 



raised line on the posterior part of the carapace, and in the greatly 

 dilated seniicirciilar terminal joint of the postabdomen. Larger 

 specimens from Sandy Point, named P. transversalis by Dr. Cun- 

 ningjiam, differ in the obsolescence of the transverse raised line on 

 the carapace, the considerably dilated chelipedes with denticulate 

 dactyli, and the smaller, more transverse terminal joints of the post- 

 abdomen, and seem to be more nearly allied to P.faba. 



The differences may be due to age, or may be of specific value. 



Hepatus chilensis. 



Hepatvs chiliensis, M.-Edw. Hist. Nat. Crust, ii. p. 117 (1837). 



Hepatus chilensis, M.-Edw. & Lucas, in d'Orbigny's Voy. Amer. 

 merid. vi. part i. Cr. p. 28, pi. xiv. fig. 1 (1843) ; Nicolet, in Gay's 

 Hist, de Chile, Zool. iii. Cr. p. 174 (1849) ; Dana, U.S. Expl. Exp. 

 xiii. Cr. i. p. 395, pi. xxv. fig. 3 (1852); Kinahan, Journ. Roy. 

 Dublin Soc. i. p. 345 (1858); Heller, Reise der Novara, Cr. p. 70 

 (1865); Cunningham, /. c. p. 493 (1871); Miers, Proc. Zool. Soc. 

 p. 656 (1877). 



Four males were collected at Coquimbo, at a depth of 4 fathoms, 

 on a sandy bottom. The coloration in all is of the normal type. 



Platymera gaudichaudi. 



Platymera yaudichaudii, M.-Edw. Hist. Nat. Cr. ii. p. 108 (1837) ; 

 M.-Edw. & Lucas, in d'Orbignv'sVov. Amer. merid. Cr. p. 28, pi. xiii. 

 fig. 1 (1843); Gay, Hist, de Chile,- Zool. iii. Cr. p. 172 (1849). 



A young male was obtained at Coquimbo, length about 5 hues, 

 breadth (exclusive of lateral sphies) about 7 lines. This example 

 differs from an adult male from Chili in the British-Museum col- 

 lection, in the form of the carapace, which in the young male is 

 much narrower in proportion to its length. 



LlTHODES ANTARCTICUS. 



Lithodes anfarcticus, Jacq. & Lucas, Voy. Pole Sud, Zool. iii. 

 Cr. p. 90, pi. vii. fig. 1 and pi. viii. fig. 9 (1855) ; Nicolet, in Gay's 

 Hist. Chile, Zool. iii. Cr. p. 182 (1849)'; Dana, Cr. U.S. Expl. Exp. 

 xiii. p. 427, pi. xxvi. fig. 15 (1852); Cunningham, /. c. p. 494 (1871). 



Two male examples of rather small size were collected — one from 

 Puerto Bueno iu 4 fathoms, and the other from Neesham Cove, 

 Trinidad Channel, iiv shallow water ; another and larger individual 

 is from x\lert Bay, on the west coast of Patagonia. Dana records 

 this species from Fuegia, and Gay from Chiloe. 



Paralomis verrucosus. 



Lithodes verrucosus, Dana, U.S. Expl. Exp. xiii. Cr. i. p. 428, 

 pi. xvi. fig. 16 (1852); Cunningham, /. e. p. 494 (1871). 



Paralomis verrucosus, Stimpsou, Proc. Ac. Nat. Sci. Phil. p. 231 

 (1858). 



Four male individuals were collected at Puerto Bueno, at a depth 



' The figure ia the Atlas of the ' Voyage au Pole Sud ' was publisheil before 

 the description in Gay'a work. 



