Dorsal activities of P. lansbergii lies mostly off pairs off rectangular blotches which can be mostly create at the same time, at each region of the vertebral line. Coloration trend and body color differ quite certainly one of somebody (Fig. 3), however clear differences in color was in fact observed certainly folks from eastern, main, or west Panama. 09, p = 0.76), otherwise certainly nations (F2,twenty-two = 0.96, p = 0.39). Intersupraoculars, canthals, and quantity of dorsal level rows demonstrated a minimal adaptation within our P. lansbergii take to.
A great PCA did more meristic emails invited limited discrimination certainly some hog-nosed pit-viper variety (Fig. 4A). 9% of your difference and you may mostly differentiated three communities: P. ophryomegas, P. nasutum/P. porrasi, and you may P. lansbergii/P. volcanicum . Which component is actually coordinated which have ventral measure count (roentgen = 0.92), much less strongly that have quantity of subcaudals (roentgen = 0.24), and also the number of blotches (r = 0.28). Next role was makes up 15.9% of type which can be mainly informed me by level of blotches (roentgen = 0.91), separating P. lansbergii off their species. Zero discrimination ranging from P nasutum and P. porrasi
is you’ll from this data put; and you may P. volcanicum offers properties having P. ophrymegas and P. lansbergii (Fig. 4A). The PCA results for P. lansbergii out-of Panama (Fig. 4B) accounted for 77% of the total difference to the first couple of portion, indicating a comparatively highest morphological overlapping one of specimens regarding the three places learned.
Our phylogenetic analyses recovered a partial phylogeny out of Porthidium that’s consistent with prior reconstructions off hog-nosed gap-viper phylogenies (Fig. 5). Briefly, a young divergence provides one or two fundamental clusters, one to and additionally P. dunni and P. ophryomegas , therefore the other has P. yucatanicum as brother taxon out-of a beneficial clade in addition to P. nasutum/P. porrasi and P. lansbergii . Further, P. lansbergii comprises a beneficial monophyletic class detailed with each other western, main and you will eastern Panama specimens, and private off Venezuela. For this reason, new secretive west Panama specimens is actually recognized as members of this species.
Campbell and you will La) offered multiple info from P. lansbergii during the Panama as an element of its say that it absolutely was restricted to the fresh new main and east half of the nation. Ray and you can Knight (2013) noticed this new shipping out-of P. lansbergii about Pacific mountain off Panama, however, localities otherwise ideas weren’t considering. Our very own extensive literature research recovered details, omitted in previous critiques, on the varieties in the west Pacific hill out-of Panama. By way of example, Dunn (1949) said specimens described as Bothrops (= https://www.datingmentor.org/cs/lds-seznamka Porthidium ) lansbergii obtained for the localities from inside the Cocle-Herrera region. Recently, brand new kinds is stated by ) in the ‘Este Montuoso’ Tree Set-aside on Herrera province and also by Monteza-Moreno, C. Yards. (pers. obs., 2017) on the locality regarding Mariato, Veraguas Province. Additionally, art gallery details and the new series regarding
people demonstrate that which types inhabit on provinces of Chiriqui and you can Veraguas. The fresh new distribution of your own nominal P. lansbergii within the Lower Main The usa gets to the fresh west Pacific of Panama (Fig. 1). Ergo, due to the fact our facts sit close to the edging from Costa Rica, brand new species might exists there.
Despite putative variations in coloration activities, we can not separate secretive individuals from men and women recognized as P. lansbergii from central and you will east Panama situated in scutellation. Concurrently, all of our phylogenetic investigation obviously aids the latest monophyly away from P. lansbergii away from Panama, and will not provide any research for the lifestyle out-of several lineages from inside the nominal variety within country. not, all of our dataset does not include specimens from the whole shipments diversity off P. lansbergii and the fact that new kinds shifts the shipments off the newest Pacific slopes during the Panama on the Atlantic inside Colombia right up to Venezuela try intriguing and deserves further analysis.