Ralph W. Axtell

Evidence for the Specific Status of the Honduran Lizards Formerly Referred to Ctenosaura palearis (Reptilia: Squamata: Iguanidae)

Ctenosaura melanosterna, a new species of spiny-tailed iguana, is described from the Aguan Valley and the Cayos Cochinos in Honduras. Its closest phylogenetic affinities are with C. palearis from the Motagua Valley in Guatemala with which it has previously been considered conspecific. Previous work on relationships within

Hybridization between Western Collared Lizards with a Proposed Taxonomic Rearrangement

DAWSON, W. R., V. H. SHOEMAKER AND P. LICHT. 1966. Evaporative water losses of some small Australian lizards. Ecology 47: 589-594. GANS, C., T. KRAKAUER AND C. V. PAGGANELLI. 1968. Water loss in snakes: interspecific and intraspecific variability. Comp. Biochem. Physiol. 27:747-761. GOIN, C. J., AND O. B. GOIN. 197

Type and Type-Locality of Sceloporus jarrovi Cope, with Travel-Routes of Henry W. Henshaw in Arizona in 1873 and 1874

Of two extant syntypes of Sceloporus jarrovi Cope, USNM 8495 is designated lectotype and USNM 8611 a paralectotype. A map depicts the travel-routes of the collector Henry W. Henshaw in southern Arizona in 1873 and 1874. The type-locality cannot be restricted to one specific site, but is somewhere between Fort Grant and the Fort Bowie National Historic Site, Arizona, in an area encompassing the southeastern Pinaleio (Graham), Dos Cabezas, and northwestern Chiricahua mountains.

Morphometric evaluation of the two mink subspecies in Illinois

Abstract The 2 subspecies of mink (Neovison vison letifera and N. v. mink) in Illinois were characterized early in the 20th century; however, quantifiable morphological distinctions between the 2 subspecies remain unclear. Illinois biogeography, and the influence of glaciations on animal populations, might explain the distinctions between the 2 mink subspecies. We evaluated sexual dimorphism within each subspecies and morphologic variation between subspecific populations. Oral, facial, and braincase regions were defined by 22 dimensions. Sexual dimorphism was present in both subspecies of mink. Data were adjusted for sex differences and tested for differences between subspecies using analysis of variance and multivariate analysis of variance. Cranial dimensions differed significantly between N. v. letifera and N. v. mink. Cranial dimensions distinguish individuals of the 2 geographically distinct subspecies; however, an intergradation zone might be present. The results are consistent with population response to glaciations and subsequent expansion, however, further genetic testing is necessary to test this historical biogeography of N. vison.

CLARIFICATION OF NAME USAGE FOR THE VARIABLE SKINK, EUMECES MULTIVIRGATUS EPIPLEUROTUS

Abstract According to Dr. Philip Tibbs, past Secretary of the ICZN, and at the time speaking for the Commission, the name Eumeces epipleurotus Cope (1880) has priority over E. gaigeae Taylor (1935). E. epipleurotis is now considered a subspecies of E. multivirgatus.