A phylogenetic analysis and systematic revision of the cryptobranch dorids (Mollusca, Nudibranchia, Anthobranchia)
Author
Valdés, Ángel
text
Zoological Journal of the Linnean Society
2002
2002-12-31
136
4
535
636
https://academic.oup.com/zoolinnean/article-lookup/doi/10.1046/j.1096-3642.2002.00039.x
journal article
5419
10.1046/j.1096-3642.2002.00039.x
8acc9095-eaff-47d7-b3da-91b6c2fb636e
0024-4082
4634200
GENUS
PARADORIS
BERGH, 1884
Paradoris
Bergh, 1884a: 686
. Type species:
Paradoris granulata
Bergh, 1884
, by monotypy.
Percunas
Marcus, 1970: 945
. Type species:
Percunas mulciber
Ev.
Marcus, 1970
; by original designation.
Figure 32.
Hoplodoris novaezelandiae
(ZMUC GAS-2105), SEM images of the radula, jaws, penial hooks and dorsal tubercles. A, inner lateral teeth; scale bar = 43 Mm. B, mid-lateral teeth; scale bar = 43 Mm. C, outer lateral teeth; scale bar = 43 Mm. D, jaw elements; scale bar = 20 Mm. E, Penial hooks; scale bar = 30 Mm. F, dorsal tubercles; scale bar = 350 Mm.
Figure 33.
Hoplodoris novaezelandiae
(ZMUC GAS-2105). A, general view of the anatomy; scale bar = 1 mm. B, reproductive system; scale bar = 1 mm. C, detail of several reproductive organs; scale bar = 1 mm. D, lateral view of the buccal bulb; scale bar = 1 mm. E, central nervous system; scale bar = 1 mm. F, ventral view of the mouth area; scale bar = 1 mm.
Diagnosis
Dorsum covered with simple tubercles, stiffened by integumentary spicules. Head with two conical oral tentacles. Anterior border of the foot grooved and notched. Labial armature with rodlets. Radula composed of simple, hamate teeth, with a short, strong cusp. Reproductive system with a flattened, granular prostate, having two well differentiated regions. Penis and vagina devoid of hooks. Accessory glands and sacs armed with copulatory spines are normally present.
Remarks
Bergh (1884a)
described the genus
Paradoris
based on
Paradoris granulata
Bergh, 1884
, as being a ‘typical dorid’ characterized by having the jaws divided into three portions, several accessory glands and several sacs with copulatory spines. According to
Bergh (1884a)
the relationships of
Paradoris
are uncertain, and this genus is probably close to the archidorids, from which it differs by having jaws.
Marcus (1970)
described
Percunas
based on
Percunas mulciber
Marcus, 1970
as having the labial cuticle divided into four areas with rodlets, all radular teeth hook-shaped, massive prostate, several darts in the muscular diverticula and multiple glands annexed to the penial papilla.
Baba
(1989)
,
Miller (1995)
, and
Ortea (1995)
recognized that
Percunas
is a synonym of
Paradoris
.
Perrone (1990)
transferred
Discodoris indecora
Bergh, 1881
to the genus
Paradoris
, without any justification, and
Ortea (1995)
regarded
P. indecora
as a synonym of
P. granulata
. The
type
material of
P. indecora
is lost, but in the original description there is enough information to recognize it as a synonym of
P. granulata
.
Miller (1995)
and
Ortea (1995)
found some variability in
Paradoris
when describing new species, and modified the diagnosis of the genus to accommodate these new species. According to these authors some species, such as
Paradoris leuca
Miller, 1995
and
Paradoris ceneris
Ortea, 1995
, lack both accessory glands and copulatory spines, whereas
Paradoris mollis
Ortea, 1995
has copulatory spines but lacks accessory glands.