056 MR. E. J. MIERS ON A COLLECTION OF [Juue 19, 



this is scarcely apparent in the larger specimen from Martinique, 

 and may also be due to the immaturity of the specimen examined by 

 him. N. anceps is nearly allied to N. hastatus, from the Mediter- 

 ranean, from which it differs in the shorter, more obtuse median 

 frontal teeth, &c., and to N. laevis, A. Milne-Edwards, from the 

 Indian Ocean, in which the carapace is nearly smooth, and the 

 median teeth of the front slij^htly prominent and acute. 



Lupea exasperata, Gerstaecker, Archiv f. Nat. xxii. p. 129 (18.56), 

 from Puerto Cabello, has the median teeth of the front- separated 

 by a deeper fissure, and the last spine of the antero-lateral margins 

 but little longer than the preceding. L. pudica, Gerst. /. c. p. 130, 

 from the coast of Brazil, has the upper surface of the carapace nearly 

 smooth, and glabrous ; the arm blunt and without a spine at the 

 distal extremity of its posterior margin. 



This species has been united by von Martens, Archiv f. Nat. 

 xxxviii. p. 95 (1872), with Lupea forceps, Fabricius, on the authority 

 of a large series of specimens from Cuba, in which von Martens 

 observed a great increase of length in the anterior legs as the animal 

 increased in age. I believe it to be quite impossible that L. anceps 

 can be identical with L. forceps, as described and figured by Leach, 

 Zool. Miscell. i. pi. hv. (1814), and Alph. Milne-Edwards, Arch. 

 Mus. Hist. Nat. X. p. 352, pi. xxviii. fig. 1 (1861). In Leach's 

 typical specimen of L. forceps in the British-Museum collection, 

 not only are the fingers very slender and more than three times the 

 length of the palm, but the carapace is strongly granulated, the 

 frontal teeth acute and separated at base by wide intervening spaces; 

 there is a very deep fissure in the middle of the upper orbital margin 

 (a mere notch in L. aticeps), five spines upon the anterior margin of 

 the arm in N, anceps, seven in L. forceps, the meros joint of the 

 fifth pair of legs without spines in L. anceps, with two spines in L. 

 forceps, &c. 



Lupa bellicosa, Stimpson, quoted by M. A. Milne-Edwards, I. c, 

 as a synonym of this species, is the Callinectes beUicosus of Ordway, 

 and has probably nothing to do with N. anceps. 



Hepatus, Latreille. 

 Hepatus chilensis. 



Hepatus chiliensis, M.-Edwards, Hist. Nat. Crust, ii. p. 117 

 (1837). 



Hepatus chilensis, M.-Edwards and Lucas, in D'Orbigny, Voy. 

 Amerique merid. vi. part i. Crust, p. 28, pi. xiv. fig. 1 (1843); 

 Nicolet, in Gay, Historia de Chile, Zool. iii. Crust, p. 174 (1849) ; 

 Dana, U.S. Explor. Exped. xiii. Crust, part i. p. 395, pi. xxv. fig. 

 3 (1852); Kiuahan, Journ. Roy. Dublin Soc. i. p. 345 (1858); 

 Heller, Reise der Novara, Crust, p. 70 (1865). 



Hab. Peru (Jels/ci). 



Two specimens (male and female) are in the collection. 



This species appears to be subject to considerable variation in the 

 sculpture of the antero-lateral margins and the coloration of the 



