A REEVALUATION OF GORDIUS-AQUATICUS-DIFFICILIS MONTGOMERY, 1898 (NEMATOMORPHA, GORDIOIDEA, GORDIIDAE)

Authors
SMITH DG
Citation
Dg. Smith, A REEVALUATION OF GORDIUS-AQUATICUS-DIFFICILIS MONTGOMERY, 1898 (NEMATOMORPHA, GORDIOIDEA, GORDIIDAE), Proceedings of the Academy of Natural Sciences of Philadelphia, 145, 1994, pp. 29-34
Citations number
19
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Proceedings of the Academy of Natural Sciences of Philadelphia → ACNP
ISSN journal
00973157
Volume
145
Year of publication
1994
Pages
29 - 34
Database
ISI
SICI code
0097-3157(1994)145:<29:AROGM1>2.0.ZU;2-V
Abstract
The nematomorph species Gordius aquaticus difficilis, originally descr ibed from a single specimen, has been placed in synonymy with either G . robustus or G. paranensis by some recent authorities. Recent collect ions of several specimens fitting the description of G. a. difficilis has allowed a more critical study of the anatomy and morphology of thi s form. Light and scanning microscopical studies of the cuticle of adu lts of each sex have revealed characters peculiar to G. a. difficilis . It is concluded on the basis of these investigations that G. a. diff icilis represents a distinct species, Gordius difficilis.