t2 University of Texas Bulletin 



Karpinsky regards Daraelitcs as belonging to the tribe of the Lecan- 

 Mnae, in which he unites Ihergiccras\ Prolccanites, Paraprolecanites, 

 I.ecanites. and as a side branch, Daraelites. J. P. Smith^ regards 

 Daraelites as belonging to the Noritinae, but the suture line shows 

 that this genus does not pass through the Pronorites stage. It would 

 therefore be preferable to unite this genus provisionally with the Pro- 

 lecanitinae, although we do not know its predecessors during the later 

 time of our Carboniferous. 



Daraelites has a wide distribution, although very few species are 

 known. It was first described from the Sicilian Sosio beds {Daraelites 

 Meeki Gemm.) . The genus has been fo.und also in the Permian of the 

 Pyrenees^ together with Gastrioceras and Paraceltites, unfortunately 

 all specifically undeterminable. Another species {Daraelites elegans) 

 has been described by Tchernow^ from the Artinsk of Russia. We 

 can add to this list our discovery of Daraelites in the lowermost part 

 of the Permo-Carboniferous of Texas. The species found there is 

 rare and fragmentary but its genus cannot be doubted and specifically 

 it is evidently different from any other Daraelites so far described. 



Daraelites texanus, n. sp. 

 PI. I. Fig. 1-8 



Shell discoidal, moderately involute, with compressed flanks and 

 rounded venter. Cross section elliptical higher than broad in the adult 

 whorls, nearly as broad as high in the younger whorls. Umbilicus 

 moderately narrow, but shallow; the flank curves down into the vun- 

 bilical wall without forming a shoulder, the umbilical wall not being 

 well limited. No ornamentation and no constrictions are visible on 

 the cast. The body chamber is unknown. 



The septa are well separated from each other (pi. I, fig. 4). The 

 siphonal lobe is large and is divided into three branches, the middle 

 one being very narrow, prominent and pointed, while the lateral ones 

 are rounded and finely serrated at the bottom ; the siphonal lobe is much 

 narrower at its upper part than above the bottom. The first lateral 



'Holzapfel has shown that Ihergiceras is not an independent genus, but only an im- 

 mature form of Pronorites cyclololms. 



"J. P. Smith, in Zittel-Eastman, Textbooli of Paleontology, 2nd ed., Vol. i, p. 633. 

 'Caralp, Le Permian de I'Ari^ge, etc. 

 'Tchernow, I'Btage d'Artinsk, p. 374, pi. 1, fig. 9, 



