142 Proceedings of the Biological Society of Washington. 



JACQUINOTIA, A NEW CRAB NAME. 



In 1830, William Elford Leach, in a paper entitled " On two new genera 

 of Crustaceous animals, discovered by Mr. John Cranch, in the expedi- 

 tion to Congo," and published in the Transactions of the Plymouth 

 Institution, described the genus Prionorhynchus (p. 170) for a pelagic 

 larval crustacean, P. cranchianus, from ofi" the northwest coast of Africa. 



In 1853 Jacquinot made a new genus of spider crabs (Family Inachidse) 

 under the name Prionorhynchus, type P. edwardsii, from the Auckland 

 Islands. This was described in Hombron and Jacquinot' s " Voyage au 

 Pole Sud et dans I'Oceaniesur les corvettes 1' Astrolabe et la Zelee," ZooL, 

 vol. 3, Crust., p. 5. 



As the name Prionorhynchus had been used 23 years previously by 

 Leach for a different genus, I propose the name Jacquinotia (Jacquinotia 

 edwardsii, type) for Jacquinot' s genus. — Mary J. Rathbun. 



THE SYSTEMATIC NAME OF THE MEXICAN SPIDER MONKEY. 



Mr. E. A. Goldman has called my attention to a name for the Mexican 

 spider monkey which antedates my Ateles tricolor (Proc. Biol. Soc. Wash- 

 ington, Vol. 27, p. 141, 1914). This generally overlooked name is Ateles 

 neglectus Reinhardt (Vid. Medd. nat. For. Kjobenhavn, 1872, p. 150), 

 type locality, Mirador, Vera Cruz. I have seen no specimens from the 

 type locality, but a study of Reinhardt's description and an examination 

 of some skins and skulls in the Biological Survey Collection taken by 

 Nelson and Goldman at Tuxtepec, Oaxaca, less than 100 miles from 

 Mirador, indicate that this species and my Ateles tricolor from Tehuantepec 

 ' are identical. The Mexican spider monkey, which is clearly distinct 

 from Ateles pan of Guatemala, should be known as Ateles neglectus 

 Reinhardt. — N. Hollister. 



THE NAME OF AZARA'S AGOUARACHAY. 



As shown by Thomas,* the small "fox" of Paraguay and northern 

 Argentina, long known under the name Canis azarae, should bear 

 another name. However, Pseudalopex azarica, proposed for it by 

 Thomas, is antedated by at least two earlier names. The species was 

 first described by Azara in 1801 under the native name Agouarachay . 

 Maximilian, like Burmeister and other later authors, believed the 

 Agouarachay to be the same as the crab-eating dog of eastern Brazil, 

 which was the real basis of the name Canis azarae. But meanwhile 

 Gottholf Fischer in 1814 had proposed the name Procyon gymnocercus 

 for the species described by Azara and, although this name has been 

 generally overlooked, it is much earlier than any other based exclusively 

 on the Agouarachay. The use of the generic name Procyon by Fischer 

 was doubtless induced by the fact that Azara had placed the species 

 next to one properly belonging to that genus and had made some com- 

 parisons with it. 



* Ann. & Mag. Nat. Hist. (8), XIII, pp. 350-360, 1914. 



