You are here » home advanced search search results Bothrocophias myrringae

Bothrocophias myrringae ANGARITA-SIERRA, CUBIDES-CUBILLOS & HURTADO-GÓMEZ, 2022

Can you confirm these amateur observations of Bothrocophias myrringae?

Add your own observation of
Bothrocophias myrringae »

Find more photos by Google images search: Google images

Higher TaxaViperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymBothrocophias myrringae ANGARITA-SIERRA, CUBIDES-CUBILLOS & HURTADO-GÓMEZ 2022
Bothrocophias microphthalmus — CAMPBELL & LAMAR 1989: 255
Bothrocophias microphthalmus — CAMPBELL & LAMAR 2004: Plate 474 
DistributionColombia (Cundinamarca)

Type locality: vereda Mundo Nuevo, municipality of La Calera, department of Cundinamarca, Colombia, coordinates: N 4.660602778, W –73.88491667; elevation 2,761 m. a.s.l.  
Reproduction 
TypesHolotype. INSZ 0268, an adult male, collected by local people and brought to Francisco Javier Ruiz, staff of the INS, on 29th August 2020. (Figs 1, 6G–I, 7, 8A–C in Angarita-Sierra et al. 2022)
Paratypes. COLOMBIA [n=5; Fig. 8C–D]: Cundinamarca: Municipality of Guayabetal. Locality: unknown, IAvH-R 6877, coordinates N 4.17508, W –73.88117 (approximate to the town). Municipality of Choachí. Locality: Palo Alto, IAvH-R6840, coordinates N 4.61578, W –73.8904. Municipality of Fómeque. Locality: vereda de Coasavistá, INSV-SR-00365, coordinates N 4.495001, W –73.852056. — Meta: Municipality of El Calvario. Locality: unknown, INSVSR-0099, coordinates N 4.358925, W –73.71358889. Municipality of San Juanito. Locality: unknown, IAvH-R7045, coordinates N 4.457913889, W –73.67618889 (approximate to the town). 
DiagnosisDiagnosis: Bothrocophias myrringae sp. nov. can be distinguished from all its congeners by the following combination of characters: (1) 157–161 ventral scales in females, 152–155 ventral scales in males; (2) internasal scales in contact or separated by a single small scale (3) absence of canthorostral scales; (4) lacunolabial scale usually present; (5) hemipenial lobes slim and cylindrical, moderately capitate distally, weakly ornamented toward the apex with large and scarce calyces with weakly spinulate edges; (8) bifurcation point of the hemipenial lobes about 2–4 sudcaudal scales; (9) hemipenial body ornamented by numerous mesial spines that increase in size from the center to periphery of the hemipenial body and arranged in oblique lines; (10) in sulcate view, lateral and mesial spines of the hemipenial body variable in size; (11) sulcus spermaticus walls weakly defined; (12) usually more than 28 dark-brown bands and/or opposite or juxtaposed trapezoid-shaped blotches with paler centers dorsally; and (13) ventral surfaces of the tail with bright reddish or orange-reddish speckles with black spots without a regular pattern and heavily marked with dark pigment towards the base (Fig. 7). (Angarita-Sierra et al. 2022)

Comparisons. Bothrocophias myrringae sp. nov. can be distinguished from all its congeners by its creamy yellow ventral surfaces and ventral scales mottled with dark brown pigment, becoming creamy white toward the edges in contact with the paraventral scales, forming a white-cream paraventral stripe which proximally fuses with the final edges of the postocular stripe, and distally is interrupted by dark spots without a regular pattern; mesial ventral surfaces become heavily mottled with dark brown pigment toward the tail (versus homogeneously dark brown to black in B. campbelli; heavily mottled with dark brown pigment, with the pale interspaces between the ventrolateral blotches encroaching on the lateral edges of the ventral scales in B. colombianus; greyish brown medially, becoming paler laterally, with or without alternating dark brown spots in B. hyoprora; yellow mottled with pale to dark brown, darker posteriorly in B. lojanus; pale pink to almost white in B. myersi); ventral tail surface bright reddish or orange-reddish speckles with black spots in an irregular pattern, and the base of tail heavily marked with dark pigment (versus base of tail dark brown and distally yellow or yellow-green in B. andianus; bright yellow to tan with diffuse grayish or brown pigment in B. campbelli; cream or pale yellow with a sparse peppering of brown in B. colombianus; whitish with a moderate suffusion of grey in B. myersi. Comparisons of meristic and hemipenial characters with all its congeners of toadheaded pitvipers are summarized in Table 4.
Bothrocophias myrringae sp. nov. can be distinguished from Ecuadorian, Peruvian, and Bolivian populations of toadheaded pitvipers currently classified as B. microphthalmus by ventral surface of tail with uniformly bright reddish or orange-reddish speckles with black spots without a regular pattern (versus heavily marked proximally with black or dark brown pigment, medially mottled with pale to dark brown, and distally with pale diffuse or pale mottling with interspaces in Bolivian and Peruvian populations). Comparisons of meristic and hemipenial characters with the Ecuadorian, Peruvian, and Bolivian populations of toadheaded pitvipers the complex are summarized in Table 5. (Angarita-Sierra et al. 2022)

Description of holotype. (Figs 5–7, Table 3) Male, small (SVL = 542 mm, TL = 95 mm, ratio 17.5%), head and body strongly differentiated by nuchal constriction; head longer than wide (HW/HL 53.3%); snout prognathous and not upturned; absence of nasorostral and canthorostral scales; two internasal scales in contact; rostral visible from dorsal view and in narrow contact with internasal scales; two canthal scales in broad contact with internasals, the first preocular, and loreal scales in lateral view; three intercanthal scales; two supraocular scales wider than long (SW/SL= 66.4%); seven intersupraocular scales; 26 interrictal scales; two nasal scales: anterior nasal scale in broad contact with rostral, internasal, and first supralabial scale, and posterior nasal scale in contact with loreal, two prefoveal, and subnasal scales; a single subnasal scale; two prefoveal scales on both sides of the head; a single lacunolabial scale in broad contact with the first and second supralabial scales as well as with prefoveal and loreal scales, and in narrow contact with supralacunal scale; a single supralacunal scale in broad contact with first preocular scale and in narrow contact with second preocular and loreal scales; a single sublacunal in broad contact with second supralabial, and in narrow contact with third preocular, lacunolabial, and single posfoveal scale; a single subocular scale; a single posfoveal scale; five interoculolabial scales; two postocular scales; six supralabial scales, second supralabial slightly higher and wider than fourth to seventh supralabial scales, and notably higher and wider than first supralabial scale; eight infralabial scales, first infralabial scales separated by mental scale and in broad contact with first pair of gular scales, second and third infralabial scales in contact with first pair of gular scales; three pairs of gular scales; four preventral scales; dorsal scale rows 21–23–19; 155 ventral scales; anal scale single; 54 subcaudal scales; slender tail not prehensile. (Angarita-Sierra et al. 2022)

Color of the holotype in life. (Fig. 8A–B) The dorsal surface of the head has a dark to reddish-brown ground color with diffuse dark brown marks without a distinctive pattern. The lateral surface of the head is scattered pale yellow from the snout to anterior edge of the eye; a conspicuous dark-brown postocular stripe with white edges running obliquely from the posterior edge of the eye to the angle formed by the quadrate and jaw bone joint encompasses the temporal scales, the last two supralabial scales, the last infralabial scale, and the mesial scales located between the preventral and infralabial scales; conspicuous tricolored ocelli present on fourth to sixth infralabial scales with white or white-cream centers, followed by dark-brown or black edge, and an external broader edge yellow or reddish-yellow. Ventral surfaces of the head are tan with a peppering of brown and dark yellow without ocelli. Ground color of the dorsal body surfaces is pale yellow, tan to brown mottled with dark brown-reddish pigment and weak orange speckles; 34 dark-brown dorsal bands and/or opposite or juxtaposed trapezoid-shaped blotches with pale centre ornamented with or without brown spots. Ventral scales are creamish yellow with ventral scales heavily marked, with brown-reddish and dark yellow pigment towards the edges in contact with the paraventral scales and spotted without a regular pattern on the mesial surface with a conspicuous white-cream paraventral stripe which proximally fuses with the final edges of the postocular stripe, and distally is interrupted by dark spots without a regular pattern. Dorsal surfaces of the tail covered by two broad dark brown bands separated by three narrow pale bands that fuse toward the distal end of the tail; ventral tail surface bright reddish or orange-reddish, darkening heavily towards the base, speckled with black spots in an irregular. (Angarita-Sierra et al. 2022)

Color pattern variation. (Fig. 8C–D) Adults of Bothrocophias myrringae sp. nov. exhibit sexual dimorphism. The dorsal, lateral, and ventral surfaces of the head and body of males are melanized with conspicuous tricolored ocelli on the third to seventh infralabial scales, and the lateral and ventral surfaces of the head in females exhibit a homogenous creamish yellow to pale yellow coloration without ocelli in the labials and gular scales (Fig. 8C–D). In addition, eye color in males is usually homogeneously mottled with dark brown pigment and weak orange speckles around the pupil; in females, it is orange-gold with a peppering of brown. One female (IAvH-R7045: San Juanito, Meta) has 25 dorsal bands, which was an unusual count among our samples. (Angarita-Sierra et al. 2022)

Meristic variation. (Table 4) Female and male adults of Bothrocophias myrringae sp. nov. exhibit sexual dimorphism in ventral scale counts (Table 4). One female (IAvH-R6877: Guayabetal, Cundinamarca) has a single canthorostral scale on the right side of the head. One male (INSVSR-00099: El Calvario, Meta) lacks a lacunolabial scale on both sides of the head, and this is the only specimen showing this condition. (Angarita-Sierra et al. 2022) 
Comment 
EtymologyNamed after the Latin translation of the Spanish nickname “Mirringa,” which means “pinch” or something very small. The word “Mirringa” was popularized by Rafael Pombo (1833–1912), a Colombian poet and writer who wrote a popular fable titled “Mirringa Mirronga. The name of the new species is in honor of the educator Myriam Sierra Guerrero (mother of the first author). 
References
  • Angarita-Sierra T, Cubides-Cubillos SD, Hurtado-Gómez JP 2022. Hidden in the highs: Two new species of the enigmatic genus of toadheaded pitvipers of the genus Bothrocophias. Vertebrate Zoology 72 971–996 - get paper here
  • Díaz-Flórez, Ronald Alessandro; Juan Timms-Rangel 2023. On the defensive behavior of the High-Andean Toad-headed Pitviper, Bothrocophias myrringae (Squamata: Viperidae), in central Colombia Reptiles & Amphibians 30 (1): e18146 - get paper here
 
External links  
Is it interesting? Share with others:

As link to this species use URL address:

https://reptile-database.reptarium.cz/species?genus=Bothrocophias&species=myrringae

without field 'search_param'. Field 'search_param' is used for browsing search result.



Please submit feedback about this entry to the curator