Electronic Supplement 6
| |
Organisms
Diversity & Evolution 5 (2005) Electronic Supplement 6 |
|
Wilfried Klein, Christian Reuter, Wolfgang Böhme, Steven F.
Perry:
Lungs and mesopneumonia of scincomorph lizards (Reptilia:
Squamata)
print version: Org. Divers. Evol. 5(1): 47-57. 2005 (full
article)
electr. suppl.:
Part 1. Table (List of scincomorph species with
described respiratory organs). pdf-format, 261
KB
Part 2. Table (Selected measurements of investigated species).
pdf-format, 260 KB
Part 3. Table (Lung-anatomical
data for the species investigated). pdf-format, 264
KB
Abstract:
Mesopneumonia of twenty-eight and lungs of forty-four
species of scincomorph lizards are described, representing mesopneumonia in six
of the seven scincomorph families and lungs of all seven families of this
taxon. Except for gymnophthalmids and scincids, a family-typical organization
of mesopneumonia occurs. In cordylids, gerrhosaurids, xantusiids and lacertids
the complete right ventral mesopneumonium (VMp) inserts cranially on the
posterior vena cava and caudally on the dorsal surface of the right liver lobe.
The left VMp is attached to the ventrolateral body wall in cordylids and
lacertids; in gerrhosaurids the left VMp is short and inserts on the
pericardium and the posterior vena cava; in xantusiids the left VMp is reduced
and the lungs are fused cranially with the pericardium. In scincids the VMp of
both sides vary in length and insert on the ventral mesentery, or may be
lacking completely. The visceral topology of the gymnophthalmids
Calyptommatus and Notobachia differs from the general scincomorph
pattern, with the liver and stomach elongated and situated on the right and
left side of the body cavity, respectively. The left and the right VMp extend
over the entire length of the lungs and insert on the ventral mesentery. All
lungs examined in the study are single-chambered and show no major structural
variability of the inner surfaces, except in lacertids, some gerrhosaurids,
Cordylus, and two genera of gymnophthalmids (Echinosaura and
Neusticurus). In these groups, rows of dorsomedial niches are present.
Key words: Scincomorpha; Lizards; Morphology; Lungs; Mesopneumonia; Viscera
 |