Hypsiglena ochrorhynchus COPE, 1860
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Higher Taxa | Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
Subspecies | Hypsiglena ochrorhynchus baueri (ZWEIFEL 1958) Hypsiglena ochrorhynchus gularis (TANNER 1954) Hypsiglena ochrorhynchus klauberi TANNER 1946 Hypsiglena ochrorhynchus martinensis (TANNER & BANTA 1962) Hypsiglena ochrorhynchus nuchalata (TANNER 1943) Hypsiglena ochrorhynchus ochrorhynchus COPE 1860 Hypsiglena ochrorhynchus tortugaensis TANNER 1946 Hypsiglena ochrorhynchus venusta (MOCQUARD 1899) |
Common Names | baueri: Isla Cedros Nightsnake gularis: Isla Partida Norte Nightsnake klauberi: San Diego Nightsnake martinensis: Isla San Martin Nightsnake nuchalata: California Nightsnake ochrorhyncha: Cape Nightsnake, Spotted Night Snake venusta: Magdalena Nightsnake S: Nocturna Moteada |
Synonym | Hypsiglena ochrorhynchus COPE 1860: 246 Hypsiglena ochrorhyncha — COPE 1886: 285 Hypsiglena orchrorhynchus — STEJNEGER 1893: 204 Hypsiglena ochrorhyncha — COPE 1900: 953 Hypsiglena orchrorhynchus — TAYLOR 1938: 494 (in error) Hypsiglena ochrorhynchus — TAYLOR 1939: 368 Leptodeira torquata ochrorhyncha — FITCH 1939 Hypsiglena ochrorhyncha ochrorhyncha — MILSTEAD 1953 Hypsiglena torquata ochrorhyncha — CLIFF 1954 Hypsiglena torquata ochrorhyncha — MURPHY & OTTLEY 1984 Hypsiglena torquata ochrorhyncha — TANNER 1985 Hypsiglena ochrorhyncha ochrorhyncha — MULCAHY 2008 Hypsiglena ochrorhyncha — WALLACH et al. 2014: 343 Hypsiglena ochrorhyncha — LEMOS-ESPINAL 2015 Hypsiglena ochrorhynchus baueri (ZWEIFEL 1958) Hypsiglena ochrorhyncha baueri — MULCAHY 2008 Hypsiglena ochrorhynchus gularis TANNER 1954 Hypsiglena torquata gularis TANNER 1954: 54 Hypsiglena torquata gularis — CLIFF 1954 Hypsiglena ochrorhyncha gularis — MULCAHY 2008 Hypsiglena gularis — PERALTA-GARCÍA et al. 2023 Hypsiglena ochrorhynchus klauberi TANNER 1946 Hypsiglena torquata klauberi TANNER 1946: 71 (1944) Hypsiglena torquata klauberi — ZWEIFEL 1958 Hypsiglena torquata klauberi — MURPHY & OTTLEY 1984 Hypsiglena ochrorhyncha klauberi — MULCAHY 2008 Hypsiglena ochrorhyncha klauberi — GOMARD 2017 Hypsiglena ochrorhynchus martinensis (TANNER & BANTA 1962) Hypsiglena ochrorhyncha martinensis — MULCAHY 2008 Hypsiglena ochrorhynchus nuchalata (TANNER 1943) Hypsiglena nuchalatus TANNER 1943: 53 Hypsiglena ochrorhynchus nuchalatus — TANNER 1946: 65 (1944) Hypsiglena torquata nuchalata — CROTHER 2000: 63 Hypsiglena ochrorhyncha nuchalata — MULCAHY 2008 Hypsiglena ochrorhynchus ochrorhynchus COPE 1860 Hypsiglena ochrorhyncha ochrorhyncha — MULCAHY 2008 Hypsiglena ochrorhynchus tortugaensis TANNER 1946 Hypsiglena ochrorhynchus tortugaensis TANNER 1946: 69 (1944) Hypsiglena torquata tortugaensis — CLIFF 1954 Hypsiglena torquata tortugaensis — LINER 1994 Hypsiglena ochrorhyncha tortugaensis — MULCAHY 2018 (pers. comm.) Hypsiglena ochrorhynchus venusta (MOCQUARD 1899) Hypsiglena venusta MOCQUARD 1899: 327 Hypsiglena ochrorhyncha venusta — TANNER 1946: 67 (1944) Hypsiglena torquata venusta — CLIFF 1954 Hypsiglena torquata venusta — ZWEIFEL 1958 Hypsiglena torquata venusta — MURPHY & OTTLEY 1984 Hypsiglena ochrorhyncha venusta — MULCAHY 2008 |
Distribution | USA (N California west of the Sierra Nevada, south to San Diego, west of the peninsular ranges), Mexico (Baja California and surrounding islands) baueri: Mexico (Cedros Island, Baja California) gularis: Mexico (Isla Partida Norte) klauberi: Mexico (N Baja California); USA (S California); Type locality: “South Coronado Island, lower California” martinensis: Mexico (Baja California: San Martln Island); Type locality: San Martln Island. Baja California, Mexico. nuchalata: USA (California: Western slopes of the Sierra Nevada Mountains from Tulare county to Tehema County); Type locality: Lemon Cove, Tulare Co. California. ochrorhynchus: Mexico (Cape region of Baja California; probably Isla Salsipuedes); Type locality: Cape St. Lucas. tortugaensis: Mexico (Baja California: Tortuga Island); Type locality: Tortuga Island. venusta: Mexico (S Baja California); Type locality: Santa Rosalia and San Iqnacio, Lower California, Mexico. |
Reproduction | oviparous. |
Types | Syntypes: ANSP 3537-38, USNM 5283, MCZ R-9503 Holotype: AMNH 77374, adult male, collected on March 1,1957,by Richard G. Zweifel [baueri] Holotype: CAS 51009 [gularis] Holotype: SDNHM = SDSNH (was in Laurence M. Klauber’s private collection, LMK), paratypes: CAS [klauberi] Holotype: FMNH 130288, collected by Senior B. F. Osorio-Tafall, on June 2, 1944 [martinensis] Holotype: BYU; paratypes: CAS, SDSNH 20233, 20293, 22501[nuchalata] Holotype: CAS 51460, collected 1921 by Robert Slevin. Paratype: SDNHM = SDSNH (was in Laurence M. Klauber’s private collection, LMK) [tortugaensis] Holotype: MNHN-RA 1896.0150 [venusta] |
Diagnosis | Additional details, e.g. a detailed description or comparisons (4449 characters), are available for collaborators and contributors. Please contact us for details. |
Comment | Subspecies: after Mulcahy 2008. Hypsiglena torquata gularis differs from other torquata in having one or more pairs of enlarged gular scales which resemble chinshields (TANNER 1954). Although this taxon was described on the basis of only two specimen GRISMER (1999) suggested to elevate it to full (evolutionary) species status because of these differences. MULCAHY (2008) assigned it to H. ochrorhyncha. Hypsiglena ochrorhyncha unaocularus (TANNER 1944) has been elevated to full species status. Synonymy: Grismer 1999: 459 says that “Tanner (1944) described Hypsiglena torquata tortugensis [sic] on the basis of two specimens from Isla Tortuga. This population was differentiated from H. torquata of the adjacent peninsula by its elongate and narrow medial nape spot and high numbers of caudal scales (57-65; Tanner, 1966). An elongate, narrow, medial nape spot has been reported in H. torquata from central Baja California (Grismer et al., 1994:Fig. 18), and Mocquard (1899) reported a range of 47-58 caudal scales in H. torquata from central Baja California. Thus, H. t. tortugensis [sic] is not discretely diagnosable and is considered a junior synonym of H. torquata." Dan Mulcahy prefers to keep it as subspecies until more data becomes available (D. Mulcahy, pers. comm., 23 Aug 2018). Type species: Hypsiglena ochrorhynchus COPE 1860: 246 is the type species of the genus Hypsiglena COPE 1860. Distribution: see map of subspecies in Mulcahy et al. 2014. Key: Taylor 1939: 368 provided a key to the species of Hypsiglena. |
Etymology | The originally named of Cope (1860) was Hypsiglena ochrorhynchus. “It is clear that Cope intended ochrorhynchus (Gr: yellow nose) as a noun used in association with the feminine generic name Hypsiglena (Gr: high eye). Thus, the treatment of ochrorhynchus as an adjective is incorrect. The correct combination is Hypsiglena torquata ochrorhynchus.” (Frost & Collins 1988: 79) The genus name was derived from the Greek words hypsi, meaning "vertical" and gleno, meaning pupil, in reference to the vertical pupil of members of this genus (LEMOS-ESPINAL & DIXON 2013). |
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