Revision of the Neotropical Scleropactidae (Crustacea: Oniscidea)
Author
Schmidt, Christian
text
Zoological Journal of the Linnean Society
2007
2007-11-30
151
1
339
https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2007.00286.x
journal article
10.1111/j.1096-3642.2007.00286.x
0024-4082
5430080
GLOBOPACTES
GEN. NOV.
Type
species:
Globopactes falconensis
sp. nov.
Diagnosis
Scleropactids with endoantennal conglobation ability. Eyes and pigment well developed. Coxal plate 1 simple (without schisma). Uropod sympodites longer than broad and with outer corner rounded. Maxilliped palp proximal article with only one large seta. Anterior pereiopods of male with scale-fields. Pleopods 1 and 2 with simple dorsal respiratory fields.
Apomorphies of
Globopactes
1. male pereiopod 7 merus with ventroproximal scaly tubercle (without such tubercle)
2. male pleopod 1 endopodite with distal portion straight (distal part bent laterally)
Derivation of the name
Latin
globus
(sphere), referring to the conglobation ability, and -
pactes
as posterior part of the name
Scleropactes
, to indicate that the new genus belongs to the
Scleropactidae
.
Phylogeny within the genus
Globopactes
Within the genus,
G. senex
,
G. falconensis
and
G. granulatus
are clearly identifiable as most closely related species. In the phylogenetic analysis (see above), they form clade 28. Their common derived characters are coxal plates 2 and 3, which have deeply concave lateral margins, adapted to conglobation. This is one of the few characters that does not require the assumption of convergency within the
Scleropactidae
.