Two new genera of Laophontidae (Copepoda: Harpacticoida) without sexual dimorphism in the endopods of the swimming legs
Author
Gheerardyn, Hendrik
Author
Fiers, Frank
Author
Vincx, Magda
Author
Troch, Marleen De
text
Zootaxa
2006
1327
41
62
journal article
10.5281/zenodo.174137
60b41d49-c460-4792-9f81-8a11c5a5d52a
11755326
174137
Genus
Propephonte
Gheerardyn and Fiers
gen. n.
Diagnosis.
Laophontidae
. Body fusiform prehensile, slightly depressed. Rostrum prominent. Integument of cephalothorax and somites pitted. Posterodorsal margin of prosomites, urosomites and anal operculum serrate. Ventral surface of third male urosomite with rows of large spinules. Caudal rami cylindrical without dorsal processes. Female antennule 6segmented; first segment distinctly elongate, with a blunt process proximally on the dorsal surface and a distinct process along the outer margin; second segment with a large, posteriorly directed hook along the outer margin. Syncoxa of maxilla with 2 endites. P1 with a 2segmented exopod. Swimming legs P2–P4 with 3segmented exopods and 2segmented endopods; without sexual dimorphism. Chaetotaxy of the ultimate exopodal segments of P2–P4: 122, 222 and 222. Endopodal lobe of female P5 reaching to middle of exopod, bearing 4 setae. Exopod of female P5 ovate, bearing 5 setae. Male P5 baseoendopod obsolete, with endopodal seta; exopod bearing 5 setae.
Type
species.—
Propephonte duangitensis
gen. n.
sp. n.
, monotypy.
Etymology.—The generic name is a conjunction of
prope
(Latin meaning close, almost) and the suffix –
phonte
, and refers to the close relationship of the genus with
Peltidiphonte
Gheerardyn and Fiers, 2006
(gender feminine).
The above diagnosis coincides with that of its only known and
type
species, and must, therefore, be considered tentative. A differential diagnosis is presented in the discussion.