Geophis brachycephalus (COPE, 1871)
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Higher Taxa | Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
Subspecies | |
Common Names | E: Costa Rican Earth Snake |
Synonym | Colobognathus brachycephalus COPE 1871: 211 Colobognathus dolichocephalus COPE 1871: 211 Geophis moestus GÜNTHER 1872: 15 Catastoma chalybaeum — GÜNTHER 1872: 16 Catostoma brachycephalum — COPE 1876: 147 Catostoma dolichocephalum — COPE 1876: 147 E(lapoidis) dolichocephalus — COPE 1885: 386 E(lapoidis) brachycephalus — COPE 1885: 386 Rhabdosoma moestum — COPE 1887: 85 Geophis chalybaea quadrangularis — GÜNTHER 1893: 87 Geophis dolichocephalus — GÜNTHER 1893: 87 Geophis moesta — GÜNTHER 1893: 90 Dirosema brachycephalum — BOULENGER 1894: 299 Geophis hoffmanni — BOULENGER 1894: 319 Catostoma brachycephalum — AMARAL 1929: 191 Geophis chalcybaea — GÜNTHER 1893 Geophis brachycephala — SLEVIN 1942: 474 Geophis brachycephalus — DUNN 1942 (part.) Geophis dolichocephala — TAYLOR 1951: 43 Geophis brachycephala — TAYLOR 1951: 46 Geophis moestus — TAYLOR 1954: 688 Geophis bakeri TAYLOR 1954: 689 Geophis brachycephalus — DOWNS 1967: 146 Geophis brachycephalus — PETERS & OREJAS-MIRANDA 1970: 119 Geophis brachycephalus — MYERS 2003 Geophis brachycephalus — WILSON & TOWNSEND 2007: 6 Geophis brachycephalus — WALLACH et al. 2014: 300 Geophis aff. brachycephalus — BATISTA et al. 2020 |
Distribution | Costa Rica, W Panama, 13–2115 m elevation (see SAVAGE & WATLING 2008 for details) Type locality: Costa Rica, San José: San José, 1160 m elevation. |
Reproduction | oviparous |
Types | Holotype: ANSP 3337, juvenile male (Academy of Natural Sciences of Philadelphia), collected by Van Patten. Holotype: ANSP 3306; Costa Rica, San Jose [dolichocephalus] Holotype: KU 31983 [bakeri] |
Diagnosis | Diagnosis: This species is characterized by having the following combination of features: (1) ventrals in males 129–140.0 ± 4.2–149, in females 136–141.7 ± 2.5–147; subcaudals in males 35–39.6 ± 3.4–48, in females 29–33.5 ± 2.2–39; ventrals plus subcaudals in males 171–179.6 ± 4.5–190, in females 169–175.3 ± 3.2–181; (2) uniform black dorsum and upper surface of tail or with red longitudinal stripes that may be fragmented by suffusions of dark pigment or with a blotched/banded pattern on at least the posterior three-quarters of the body that continues onto the upper surface of the tail; (3) hemipenes slightly bilobed, capitulum moderately long but slender, about 2.5 times length of truncus on asulcate side. Additional details (57 characters) are available for collaborators and contributors. Please contact us for details. |
Comment | Geophis nigroalbus BOULENGER 1908 has been removed from the synonymy of G. brachycephalus. Does not occur in Colombia fide WILSON & TOWNSEND 2007. |
Etymology | Named after Greek brachys (βραχύς), short + Greek kéfali (κεφάλη), head. [“...Head flat; rather wide behind, and distinct from neck...”]. |
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