124 TRAVELS AMONGST THE GREAT ANDES. 



3. Pakemon Jamaicensis. 



Cancer (Astamis) Jamaicensis, Herbst, Naturgescli. der Krabbeii ii. Krebse, 

 ii (heft 2), p. 57, pi. xxvii, fig. 2 (1792). 



Pcdccmon Jamaicensis, Olivier, Eiicycl. Meth., viii, p. 659 (1811) ; M. 

 Edwards, Hist. Nat. des Crust., ii, p. 398 (1837) ; v. Martens, Arch. f. Nat, 

 XXXV, p. 23 (1869) ; xxxviii, p. 137 (1872) ; S. I. Smith, Rep. Peab. Acad. 

 Sci., p. 97 (1869), pub. 1871. Trans. Connecticut Acad., ii, p. 23 (1869) ; 

 Kingsley, Bull. Essex Institute, x, p. 68 (1878) ; xiv, p. 107 (1883). 



Pala'moyi brachydactyhis, Wiegniann, Arch. f. Naturgescli., ii, p. 148 (1836), 

 var. '( 



Palcemon imnctatm, Randall, Journ. Ac. Nat. Sci. Phil., p. 146 (1839). 



Macrohrachium, Amcricanum, Spence Bate, Proc. Zool. Soc, p. 363, pi. xxx 

 (1868) ; c.f. Semper, Proc. Zool. Soc, t. c. p. 585 (1868). 



Hab. Tanti (1890 feet). One example. 



The specimen, which is adult, has the rostrum broken, but its identifi- 

 cation is I think certain. 



(J. Length of body to base of rostrum 3^ inches (85 millim.). 



This sjiecies occurs commonly in the West Indies and Brazil, and in 

 the fresh waters of Mexico and Central America, and Prof. Kingsley has 

 already recorded its having been brought by Prof. Orton from the junction 

 of the Napo and Maranon Rivers, and from Guatemala, and from Polvon, 

 W. Nicaragua. There are small siDecimens which I think are referable to 

 P. Jamaicensis, from the Cape Verde Islands, in the Collection of the British 

 (Natural History) Museum. 



4. Squilla duhia. (See the accompanying Plate.) 



Squilla duhia, M. Edwards, Hist. Nat. Crust., ii, p. 522 (1837) ; Miers, 

 Ann. Mag. Nat. Hist. (ser. 5), v, p. 24 (1880) and synonyma. 



Hah. GuayaquiL Two examples. 



Two adult males are in the collection, obtained from the saline back- 

 water at Guaya(|uil. In all essential particulars, they resemble specimens 

 from San Domingo and Honduras in the Collection of the British (Natural 

 History) Museum. Mr. Whymper was informed that the local name M'as 

 ' Camaron brujo.' "It lives in the mud, and the natives have tried to eat 

 it, but found it poisonous." 



Ad. $ . Length of body to end of rostrum 5| inches (147 millim.). 



As Milne Edwards' original description is very short, and is unaccom- 

 panied by any illustration, it has been thought Avell to figure the smaller and 

 more perfect male collected by Mr. Whymper, in order to facilitate the 

 identification of this species, which if not correctly referred to Squilla duhia 

 must be designated by Dana's name, S. ruhrolineata. 



