41 



from tbe snout at the axilla (0.25) is nearly equal to the length of the 

 body. The ventral spine resembles the fifth dorsal spine in shape and 

 size. The length of the longest ray (0.11) slightly exceeds one-third of the 

 distance from the snout to the ventral axilla (0,30) ; the axillary append- 

 age consists of four lanceolate scales, the first and the longest as long 

 as the last ventral ray. 



Color. — Silvery, with a bluish tint above ; axils of the pectorals and 

 extremity of snout brownish. Eadial formula:^ D. IX, 10; A. II, 8, P. 

 12 ; y. I, 5 ; C. 3, 9, 9, 3. 



The unit of measurement used above is the one-hundredth of the total 

 length, which in an average specimen is 7.29 inches (0™.185). The 

 species is common in the protected inlets about the islands, in company 

 with the preceding species, the "Shad." The " Long-boned Shad" are 

 in much demand for bait, and are easily seined in large quantities. 



The species is dedicated to his excellency Maj. Gen. J. H. Lefroy, F. 

 E. S., governor of the Bermudas, a gentleman of well-known scientific 

 attainments and reputation, who, while doing so much for the social and 

 political welfare of the islands, is also taking an active part in the devel- 

 opment of their natural history. 



Since the i3ublication of the preliminary description of this fish, I 

 have had the opportunity of comparing specimens from the Bermudas 

 with others sent from Havana to the National Museum by Professor 

 Poey, by whom the species had been recognized as new, and described 

 in MS. under the name of JEucinostomus productus. The specimens are 

 precisely the same, and coincide in having only two anal spines ; a 

 character in which they diifer from the remainder of the genus, and 

 which may prove to be, as suggested by Professor Poey, an indication 

 of generic distinction. 



TEUTHIDIDJE. 



ACANTHURUS NIGEIOANS, {Linne) Gill. 

 Doctor-fish. 



Turdus rJioniboidalis, Catesby, Nat. Hist. Carolina, Flor. and the Bahama Islands, ii, 1743, 



10, tab. X, fig. 1. 

 Chcetodonnigriscens Cauda albescente wqali utrinqiie aculeata, Aetedi, Desc. Spec. Pise. 90. 

 CJi(etodon nigricans, Linn^, Syst. Nat. ed. 10, 1, 1758, 274 ; ed. 12, 1, 1766, 462.— Gmelik, 



Liang, Syst. Nat. 1, 1788, 1245. 

 Acanthurus nigricans, Gill in Baird's Eeport Sea Fisheries of Southern New England, 



1873,801. 



