Etymology.—A patronym for the collector of the type specimens.
Distribution.—The Edwards Plateau and the extreme eastern edge of the Stockton Plateau in Texas ([Fig. 11]). The fossil records lie some 200 miles to the north. Two specimens (FMNH 103216-17) from Brownsville, Cameron Co., Texas, were formerly in the EHT-HMS collection (nos. 31348-49). Data given in Taylor's field catalogue (housed in the Division of Reptiles, Field Museum) are "Brownsville, A. J. Kirn collector, April 15, 1934." Until verification by recently collected material is available, this record must be disregarded.
Specimens examined.—(103) TEXAS, Bandera Co.: 10 mi. SW Medina, TCWC 13508-10; 8 mi. W Medina, KU 60243; 13 mi. W Medina, KU 60242, TCWC 13506-07. Bexar Co.: UIMNH 34694; Classen ranch, near San Antonio. UMMZ 98891; Helotes, EAL 1560, MCZ 11837 (2), UMMZ 64045, USNM 13635; 2 mi. N Helotes, TCWC 9234-35; 3.5 mi. N Helotes, LSUMZ 10363; 8 mi. N Helotes, TCWC 1549, 4364; San Antonio, FMNH 15553-56, TCWC 13497-99. Blanco Co.: 8 mi. NE Blanco, TCWC 4782. Comal Co.: New Braunfels, TCWC 13500-05; 5 mi. NE New Braunfels, UMMZ 71016 (10). Hays Co.: San Marcos, AMNH 22661-64, 32700, FMNH 15245-46, 26250, 26253-57, 37617, 37665, MCZ 15649-50, 23268-69; 6 mi. SW San Marcos, TCWC 5070-71, 7140, 9232-33, 9236, 9316-17, 9320. Kendall Co.: 11 mi. E Boerne, AMNH 54660-61, 54662 (2); 10 mi. W Boerne, KU 18441; Kendalia, UIMNH 21434. Kerr Co.: Kerr W. M. Area, TCWC 15859; 40 mi. NW Kerrville, TCWC 6555. Medina Co.: UIMNH 13287-88; 12 mi. N Castroville, UIMNH 21423; 14 mi. N Castroville, UIMNH 21424-25; 16 mi. N Castroville, UIMNH 21421-22; 17 mi. N Castroville, UIMNH 21428-29; 18 mi. N Castroville, UIMNH 21426-27, 21430-33; 6.5 mi. NW Rio Medina, KU 18440. Real Co.: Rio Frio, FMNH 55156-57. Travis Co.: Austin, AMNH 44221-22; Mount Bonnell, 5 mi. S Austin, UMMZ 101453 (10). Uvalde Co.: 13 mi. from Uvalde, UIMNH 62322. Val-Verde Co.: 40 mi. N Del Rio, JDL 214 (skeleton).
Fig. 11: Distribution of Syrrhophus marnockii (circles). Starred localities are late Pleistocene records.
Syrrhophus verrucipes Cope, 1885:383 [Holotype.—ANSP 11325, from near Zacualtipán, Hidalgo, México (1800 feet lower in a rocky gorge of a stream near its junction with the Río San Miguel), collected by Dr. Santiago Bernard]. Kellogg, 1932:126-29. Smith and Taylor, 1948:52-53. Firschein, 1954:55-57. Gorham, 1966:167.
Syrrhaphus verrucipes: Günther, 1900:216-17.