Trimetopon slevini DUNN, 1940
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Trimetopon slevini
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| Higher Taxa | Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Slevin's Tropical Ground Snake |
| Synonym | Trimetopon slevini DUNN 1940: 117 Trimetopon slevini — SLEVIN 1942: 474 Trimetopon slevini — VILLA et al. 1988 Trimetopon slevini — SAVAGE 2002 Trimetopon slevini — WALLACH et al. 2014: 744 |
| Distribution | Costa Rica, Panama Type locality: Near Boquete, Chiriqui Prov., Panama, elevation 4000 feet |
| Reproduction | oviparous; one female had 2, another had 1 developed egg (Dunn 1940) |
| Types | Holotype: CAS 78938 |
| Diagnosis | Diagnosis. “A Trimetopon with two prefrontals. Allied to T. barbouri Dunn and to T. viquezi Dunn; differs from the first in having more dorsals (17) and more ventrals (153-161); differs from the second in having paired light spots on nape, in lacking a dark streak on scale row 4, in that extension of white neck-color dorsally does not involve seventh upper labial.” Description. “Dorsal scale rows 17-17, smooth, pitless, with slight keeling near anus of male: ventrals 155 in male, 160-161 in females; anal double; caudals paired, 58 in male, 49-50 in females; upper labials 7, third and fourth in eye; lower labials 8, four in contact with the longer anterior geneials, first pair in contact; two prefrontals; nasal divided; oculars 1-2; temporal 1-1; loreal small, square; throat white, belly and under side of tail red; black above, each scale except those of vertebral row with a central and basal white oval mark; thus a vague striped pattern with a definite middorsal stripe; an approach to two lateral dark stripes, as the black borders are heavier between rows 1 and 2 and between rows 3 and 4; a light spot (involving about three scales) just behind each parietal; a white mark from throat to just behind seventh upper labial; a white streak from eye involvesparts of labial 5 and 6 (6 and 7 in viquezi); border of upper labials 1 and 2, and about lower half of 3 and 4, white; otherwise head black; male total length 220 mm., tail 59; female total length 275 mm, tail 55, and 265 mm., tail 52.” (Dunn 1940) |
| Comment | |
| Etymology | Named after Joseph Richard Slevin (1881-1957), curator of Herpetology at the California Academy of Sciences 1928-1957. |
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