Decapod Crustacea of Bermuda, Part II. 41 



unsegmented ; second and third maxillipeds have well developed 

 epipods and large exopods ; all the perepods have small exopods, 

 but only the first, second and third are furnished with epipods ; 

 there is a well developed pleurobranchia on the fourteenth somite. 

 The number and arrangement of the branchiae and epipods are 

 the same for the six species named, including the type, with 

 P. brazilicnsis, P. setiferns, etc. Viz. : Epipods, 6 pairs ; podo- 

 branchiae, i pair; arthrobranchiae, n pairs; pleurobranchiae, 6 

 pairs. Altogether there are 18 pairs of branchiae. 



Penaeus braziliensis (Latr.) Large Prawn. Market Shrimp. 



I'ditcKs braziliensis Latreille, Nouv. Diet, d' Hist. Nat. xxv, p. 156, 1817. 

 H. M.-Edw., Hist. Nat. Crust., ii, p. 414, 1877. Stimpson, Notes on 

 N. A. Crust., iii. p. 132, 1871. Smith, these Trans., ii, p. 27 (Brazil). 

 Von Martens, Cuban Crust., p. 140, 1872 (descr.). Miers, Proc. Zool. 

 Soc. London, 1878, pp. 299-306. Kingsley, Bull. Essex Inst. xiv, p. 106 

 (2), 1883 (distr.). R. Rathhun, Fishes and Fish Industries U. S. Sect, i, 

 text, p. 822, 1884. Benedict, Proc. U. S. Nat. Mus., xvi, p. 540, 1893 

 (W. Africa). Verrill, these Trans., x, p. 580, 1900 (Bermuda). 

 Smith, Proc. U. S. Nat. Mus. vol. for 1885, p. (80), 1886. 



Palawan serratus Hurdis, Rough Notes, p. 361, 1897, "The common 

 prawn." 



Penams brcvirostris Kingsley, Proc. Acad. Nat. Sci. Philad. for 1878. 

 p. 98 (10), t. Kingsley, op. cit, 1879, p. 427 (Nicaragua). 



Pen-ecus braziliensis Edwards and Bouv., op. cit., p. 239, pi. vi, figs. 11-12, 

 1909. 



Peneus braziliensis Hay and Shore, Bulletin Bureau Fisheries, vol. xxxv, 

 p. 377, pl 25, fig. 6, 1918. 



PLATE XIII, FIGURES 1-3. PLATE XVI, FIGURES i, 2, 2A. PLATE XVII, 

 FIGURE 10. D. E. F. (DETAILS AFTER EDWARDS.) 



This species can be easily distinguished by the wide and deep 

 sulcus that extends along each side of the prominent dorsal carina, 

 nearly to the posterior border of the carapace, while the posterior 

 half of the carina also has a dorsal sulcus, or is bicarinate. The 

 highest part of this carina is above the orbits. The carina and 

 rostrum have about nine teeth above (8-n) ; the rostrum usually 

 has two or three below, sometimes but one. About three or four 

 of the upper teeth are on the rostrum and five or six on the cara- 

 pace, the last one being considerably separated from the next; 

 toward the anterior end the rostrum is straight and without teeth. 



