ART. 35 MASTODONS FOUND IN TEXAS HAY 6 



There appears to be no copy of this work in America and the 

 librarian of the British Museum of Natural History informed the 

 writer that the name does not appear on that page, but that it oc- 

 curs on pages 241 and 271. Having received from the British 

 Museum photostats of those pages, I find that no description of 

 either the genus or the species was given by Aymard in this paper. 

 His name is therefore a nomen nudum. 



In 1859, Lartet^ quoted Anancus macroplus as a synonym of 

 Mastodon arvei'nensis. This gave Anancus a nomenclatural stand- 

 ing; so that those who, like the writer, regard Mastodon arvernensis 

 as belonging to a genus distinct from Maminut and from GonipJvo- 

 thenum, must accept the name Anancus Lartet. The writer, for 

 the present, at least, regards the mastodon remains described above 

 as belonging to the same genus. 



6. On the specific names of the Texan specimens above described and of the 



TWO South American species 



In 1923 " the writer described a species of mastodon under the 

 name Anancus hrazosius, based on a right side of a mandible con- 

 taining the second and third molars. These teeth present trefoils 

 on the inner columns of the crests, but with the basal lobes smaller 

 than those of the outer columns. The hindermost molar has five 

 crests; but, as is usual, the fifth is relatively small. In the British 

 Museum specimen referred by Lydekker to M. cordillerum the talon 

 is so large as to simulate a crest (pi. 1). In the Cameron specimen 

 the fifth division of the crown was large, but its structure is un- 

 known. For the present the writer refers to Anancus hrazosius the 

 Cameron specimen, the molar from Waco, and the Texas tooth as- 

 signed by Lydekker to M. cordillerum. 



In the preceding discussion the writer has employed for one of 

 the South American species the names Mastodon andiu7?i, M. cordil- 

 leramm.^ and M. cordillerum. As pointed out in the writer's paper 

 just cited, Fischer de Waldheim's name Mastotherium hyodon ante- 

 dates all three of those mentioned. The species dealt with in the 

 present paper will bear therefore the names Anancus humholdtii, 



A. hyodon, and A. hrazosius. 



B. DESCRIPTION OF REMAINS OF GOMPHOTHERIUM CIMARRONIS 



(Cope) 



1. History of the specimens 



From Dr. Mark Francis, of College Station, Texas, the writer has 

 received for examination a collection of mastodon teeth and tusks 

 which had been made in 1915, on the farm of Ed. Noble, about 5 



8 Bull. Soc. Geol. France, ser. 2, vol. 16, p. 493. 

 »Pan-Amer. Geologist, vol. 39, p. 112, pi. 8, figs. 1, 2. 



