62 I'AL.KONTOLOGY. 



MOLLUSCA. 

 BRACIIIOPODA. 



STROPHOMENIDJ]:. 



Genus IIEMIPRONITES, Pander. 

 Hemipronites ceenistria, Phillips (sp.)- 



Plate 7, fig. 2. 



Spirifer crenktria, Phillips (1836), Geol. Yorks., 11, 21G, pi. ix, fig. G. 



Spirifer senilis, Phillips (183G), ib., fig. 5. 



Lcptwna anomala, Sowerby (1840), Mio. Conch., VII, 9, pi. Glo, fig. 1 h (not 1 a, d, c). 



Orthis umbraculum, Portlock (1843), Geol. Lon(l.,45G, pi. 37, fig. 5.— Ue Koninck (1843), 



An. Foss. Garb. Belg., 222, pi. xiii, figs. 4-7 (not vou Buch). 

 Orthis Bechei, McCoy (1844), Synop. Garb. Foss. Ireland, pi. xsii, fig. 3. 

 (h-this comata, McCoy (1844), ib., fig. 5. 

 Orthis caduca, McCoy (1844), ib., fig. G. 



Orthotetes radians, Fischer (1850), Bull. Soc. Imp. Mosc, XXIII, pi. 9, fig. 3.* 

 Leptwna crenistria, McCoy (1855), Brit. Pal. Foss., 450. 

 LeptcBna senilis, McCoy (1855), ib., 452. 



? Orthis Kinlcid; Hall (1858), Iowa Keport, I, part ii, G40, pi. xix, figs. 5 a, h. 

 ? Orthis rohusta, Hall (1858), ib., 713, pi. xxviii, figs. 5, a, h, c. 

 Strqjtorhynchus crenistria, Davidson (18G0), Mon. Scottish Garb. Bra(!h., 32, pi. i, 



figs. 16-22; and in Mon. Brit. Garb. Brach. (1861), 124, pi. xxvi, fig. 1, pi. 



xxvi, figs. 1-5, and pi. xxx, figs. 14-16. 

 ? Streptorhynchus UaUianus and S. Tapajotensis, Derby (1874), Bull. Cornell Univ., I, 



35 and 37, pi. v. 



The specLmens that I have here referred to the above-named widely-dis- 

 ti-ibuted and vv^ell-known species, seem to agree in all their external charac- 

 ters with the published figures and descriptions of that form as given by 

 the most reliable European authorities. None of them, however, show the 

 interior, and they are all in a bad state of preservation. 



Locality and position. — Light-colored limestone. Fossil Hill, White Pine 

 District ; White Pine County, twenty-five miles northeast of Hamilton ; 

 and Railroad Cafion, Diamond Mountains. The specimen figured was 

 brought by Colonel Simi)son from a dark limestone near Camp Floyd. All 

 Carboniferous. 



• The name Orthotetes was first proposed by Fischer in 1829 ; but as he neither 

 then, nor at any subsequent time, named, described, figured, or cited any type (until 

 1S50), his genus cannot be regarded as antedaling Hemipronites, Pander, 1830. 



