Sonora mosaueri STICKEL, 1938
Can you confirm these amateur observations of Sonora mosaueri?
|Higher Taxa||Colubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)|
|Common Names||E: Mosauer’s Ground Snake|
|Synonym||Sonora mosaueri STICKEL 1938: 189|
Sonora mosaueri — SMITH & TAYLOR 1945
Sonora mosaueri — CLIFF 1954
Sonora semiannulata — FROST 1983: 35
Sonora (Procinura) mosaueri — COX et al. 2018: 982
|Distribution||Mexico (Baja California Sur)|
Type locality: Comondu, Baja California Sur (Mexico)
|Types||Holotype: MVZ 13772 (male); paratypes: MVZ|
|Diagnosis||Diagnosis: This species is distinct from Sonora cincta, S. fasciata, S. straminea, S. aemula, S. annulata, S. occipitalis and S. palarostris by the lack of rostral or caudal adaptations. There are no clear morphological differences between S. mosaueri and S. semiannualata, whose geographic ranges may overlap in the northern state of Baja California. This lack of meristic characters distinguishing the various species and subspecies of the S. semiannulata species group is what led Frost (1983a) to synonymize all of these nomen with S. semiannulata. However, we found substantial molecular evidence that material formerly assigned to S. semiannulata from the southern half of the Baja California Peninsula is not even nested with S. semiannulata from the USA and northern mainland Mexico, but is instead sister to S. aemula. We recommend that geographic range be used to distinguish S. mosaueri from S. semiannulata (Cox et al. 2018: 982).|
Variation: Sonora mosaueri is not polymorphic, and all individuals are brown, grey, or tan uniform in appearance. Individuals of this species often have prominent maculations on the dorsal scales, and have the largest body size of the S. semiannulata species group (Cox et al. 2018: 982).
|Comment||All species of Sonora possess colour pattern polymorphism, with uniform, striped, banded, bicolour and tricolour morphs known for the different species.|
Synonymy: Sonora mosaueri has been considered a synonym of Sonora semiannulata until Cox et al. 2018 revalidated it.
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