| Higher Taxa | Viperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Tamaulipan Rock Rattlesnake
S: Cascabel Café de la Rocas |
| Synonym | Crotalus lepidus morulus KLAUBER 1952: 52
Crotalus lepidus morulus — LINER 1994
Crotalus lepidus morulus — BRYSON 2007
Crotalus morulus — BRYSON et al. 2014
Crotalus morulus — TERÁN-JUÁREZ et al 2016 |
| Distribution | Mexico (Sierra Madre Oriental, Tamaulipas, Nuevo Leon, Coahuila)
Type locality: "10 miles northwest of Gomez Farias on the trail to La loya de Salas, Tamaulipas, Mexico, at an altitude of about 5300 ft., in a forested flat."
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| Reproduction | ovovivparous. |
| Types | Holotype: UMMZ 101376 |
| Diagnosis | Additional details, e.g. a detailed description or comparisons (1016 characters), are available for collaborators and contributors. Please contact us for details. |
| Comment | Venomous!
Distribution: see maps in Campbell & Lamar 2004: 527 (Map 90) and Blair et al. 2018: 352 (Fig. 1). Not in Nuevo Léon fide Lemos-Espinal (pers. comm. 6 June 2016). Not in Coahuila fide Lazcano et al. 2019, but shown on map for Coahuila and Nuevo Leon by |
| Etymology | Named after Latin morus, mulberry + Latin -ulus; of a, pertaining to a, in a condition of, in a state of. [“...The juveniles are very dark, both above and below, with black dorsal blotches on gray backgrounds that are heavily mottled by the intermediates. The adults are slate-gray to dark slate-gray with dark-brown blotches...”]. |
| References |
- Blair C, Bryson RW Jr, Linkem CW, Lazcano D, Klicka J, McCormack JE. 2018. Cryptic diversity in the Mexican highlands: Thousands of UCE loci help illuminate phylogenetic relationships, species limits and divergence times of montane rattlesnakes (Viperidae: Crotalus). Molecular Ecology Resources 19: 349–365 [2019] - get paper here
- Bryson, R.W. 2007. Fotopirsch auf Gebirgsklapperschlangen. Reptilia (Münster) 12 (66): 32-37 - get paper here
- BRYSON, ROBERT W.; JR., CHARLES W. LINKEM, MICHAEL E. DORCAS, AMY LATHROP, JASON M. JONES, JAVIER ALVARADO-DÍAZ, CHRISTOPH I. GRÜNWALD & ROBERT W. MURPHY 2014. Multilocus species delimitation in the Crotalus triseriatus species group (Serpentes: Viperidae: Crotalinae), with the description of two new species. Zootaxa 3826 (3): 475–496 - get paper here
- GARCÍA-PADILLA, ELÍ; IVÁN VILLALOBOS- JUÁREZ & DAVID LAZCANO 2024. APUNTES SOBRE LA PRESENCIA DE LA VÍBORA DE CASCABEL DE LAS ROCAS TAMAULIPECA (CROTALUS MORULUS) EN TAMAULIPAS Biología y Sociedad 7 (13): 22-37
- Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
- Klauber, Laurence M. 1952. Taxonomic studies on rattlesnakes of Mainland Mexico. Bulletins of the Zoological Society of San Diego (26): 1-143 - get paper here
- Liner, E.A. 1994. Scientific and common names for the Amphibians and Reptiles of Mexico in English and Spanish. Herpetological Circular 23: 1-113
- Nevárez-de-los-Reyes, Manuel, David Lazcano, Elí García-Padilla, Vicente Mata-Silva, Jerry D. Johnson and Larry David Wilson. 2016. The Herpetofauna of Nuevo León, Mexico: Composition, Distribution, and Conservation. Mesoamerican Herpetology 3 (3): 558–638 - get paper here
- PAUL, LAURENCE & ROBERT W. MENDYK. 2021. Glow and Behold: Biofluorescence and New Insights on the Tails of Pitvipers (Viperidae: Crotalinae) and Other Snakes. Herpetological Review 52 (2): 221–237. - get paper here
- Terán-Juárez, Sergio A., Elí García Padilla, Vicente Mata-Silva, Jerry D. Johnson and Larry David Wilson. 2016. The herpetofauna of Tamaulipas, Mexico: composition, distribution, and conservation status. Mesoamerican Herpetology 3 (1): 43–113 - get paper here
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