PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 419 



(luced in the appendix, and the plate is also here presented. The type 

 of T. Herschelii is in the British Museum. The United States National 

 Museum has some fiue skius, apparently of this species, brought from 

 Mauritius by Col. Nicholas Pike, United States consul. There is no 

 reason to doubt that this species may be the same with T. indictis, 

 Cuv. & Val., just described, there being little probability that there 

 are two species in waters so close as those of Sumatra and the Cape of 

 Good Hope. 



4. Tetrapturus Georgii, Lowe. 



Tetrapturus Georgii, LiOVfE, Proc. Zoo]. Soc. viii, 1840, p. 35: Trans. Zool. Soc. 

 iii, 1849, J). 8 (rei)rint of first). — Gunther, op. cit. ji. 512, foot-note. — LtJT- 



KEN, 11. C. 



This species known at Madeira as '■'■Peito'\ was described by Lowe 

 thus briefly: "I am enabled to state that it forms a new and very dis- 

 tinct species of Tetrapturus^ Raf , differing from T. belone Raf., as de- 

 scribed by MM. Cuvier and Valenciennes, especially in having the 

 pectoral fins proportionately twice as long, and the body clothed with 

 large scales of a peculiar shape and character." 



Liitken believes it to be identical with the two species of the Indian 

 Ocean just discussed, as well as with the two Cubian species. It 

 should surely be carefully compared with the latter. 



5. Tetrapturus albidus, Poey. 



Tetrapturus alUdiis, Poey, Mem. Hist. Nat. Cuba, ii, 1858, p. 237, pi. xv, fig. 1; 

 pi. xvi, figs. 2-13; pi. xvii, figs. 1, 5, 6-9, 10-11, 26: lb. p. 2.58: Rep. Fis. 

 Nat. Cuba, ii, 1868, p. 380.— Gill, Cat. Fish E. Coast N. A. 1873, p. 24.— 



LiJTKEN, 11. C. 



6. Tetrapturus amplus, Poey. 



Tetrapturus amplus, Poey, op. cit. p. 243, pi. xv, fig. 2; pi. xvi, figs. 12-25; Rep. 

 Fis. Nat. Cuba, ii, 1838, p. 380.— Lutken, 11. c. 



These two species are described by Poey from Cuba, and one of them, 

 T. albidus, is not uncommon on the Atlantic coast of the United States. 

 Liitken is disposed to consider them both identical with the T. indicns 

 type, and it seems to me that there is as much reason for this procedure 

 as for merging the Sail-fishes of the Atlantic and Indian Oceans, as has 

 been persistently done by all writers on ichthyology. 



7. Tetrapturus brevirostris (Giintber & Playfair), Liitken. 



"Histioplwrus trevirostus, GtJNTHER «fe Playfair, Fishes of Zanzibar, 1866, pp. 



53, 145, figure.'' — Day, Fishes of India, 1876, p. 199, y)l. xvii, fig. 3. 

 Tetrapturus irevirostris, Lxjtken, 11. c. 

 Uisiiophorus, Knox, Trans. New Zealand Institute, ii, 1870, pp. 13-16, fig. 1. 



This species, the habitat of which is given by Day as " ? East coast of 

 Africa, seas of India, perhaps New Zealand", is referred by Liitken to 

 the same species with T. indicus and T. Herschelii. Day considers it 

 closely allied to Tetraiiturus Lessonii, Canestrini. 



