William W. Lamar’s scientific contributions

... Además, se obtuvo el registro de Epictia tesselata (Leptotyphlopidae), comúnmente llamada "serpiente ciega", en las zonas altas de la provincia de Pisco, en la localidad de Huancacasa (Vargas 2015) y de Incaspis tachymenoides en la evaluación de campo complementaria en el distrito de San Juan de Yanac (Chincha). Un caso especial es el estado taxonómico de B. roedingeri, para el cual diferentes autores la consideran un sinónimo de B. pictus (Campbell & Lamar 1992) o un linaje independiente (Fenwick et al. 2009, Carrasco et al. 2012. En este estudio consideramos a B. roedingeri como un sinónimo de B. pictus. ...

Reference:

Anfibios y reptiles del departamento de Ica con comentarios sobre su distribución

... The data from the antivenomics and ED 50 experiments were combined to calculate the fraction of anti-toxin and venom neutralizing IgG or F(ab') 2 molecules [49,[52][53][54][55]. The percentage of anti-toxin IgG or F (ab') 2 To calculate the percentage of neutralizing anti-toxin molecules, the potency (P) of the antivenoms was first obtained, i.e. the amount of venom (mg) neutralized per 1 mL of each antivenom, was calculated as P = [(n-1)/ED 50 ] × LD 50 , where "n" is the number of LD 50 s used as challenge dose to determine the ED 50 and, "n-1" is used because at the endpoint of the neutralization assay, the remaining activity of one LD 50 remains unneutralized causing the death of 50% of mice [56,57]. For the calculation of P, LD 50 and ED 50 values were expressed, respectively, in mg venom/mouse and mL of antivenom that protect 50% of the mice population inoculated with n × LD 50 . ...

Reference:

Venomics of the poorly studied hognosed pitvipers Porthidium arcosae and Porthidium volcanicum

... (Campbell & Lamar, 2004). However, B. pictus and B. roedingeri are very similar in appearance, and it has been suggested to consider B. roedingeri as a junior synonym of B. pictus (Campbell & Lamar, 1989). Therefore, we follow Campbell & Lamar (1989) and treat the whole group as a single species, B. pictus, until ongoing research evaluates the taxonomic status of B. roedingeri. ...

Reference:

Endemic pit vipers of Peru: geographic distribution and human- mediated impacts Herpetological Journal