Additions to the aspidochirotid, molpadid and apodid holothuroids (Echinodermata: Holothuroidea) from the east coast of southern Africa, with descriptions of new species
Author
THANDAR, AHMED S.
text
Zootaxa
2007
2007-03-01
1414
1
1
62
http://dx.doi.org/10.11646/zootaxa.1414.1.1
journal article
10.11646/zootaxa.1414.1.1
11755334
5077005
DC93A9BC-D24E-44AD-99AF-79CACCCFB984
Holothuria (Stauropora) pervicax
Selenka, 1867
Figure 14
Holothuria pervicax
Selenka, 1867: 327
, pl. 18, fig. 54.
Holothuria (Mertensiothuria) pervicax
Cherbonnier, 1988: 107
(synonymy before 1988), fig. 43, A–K.
Holothuria (Stauropora) pervicax
Samyn, 2003: 74
, fig. 30 A–D, fig. 54 E, pl. 3 F (synonymy and records after 1988).
Lectotype
ZMH
E2538
.
Lectotype
locality
Tahiti.
Previous southern African record
Mozambique
and southern
KZN
,
South Africa
.
Material examined
SAM-A27936
, off
Beira
,
20°25' S
,
35°50' E
, R.V. ‘
Algoa’
,
Mozambique
SCAD
Survey
,
St.
C 00835-014- 032-2109,
18.vi.
1994
,
60 m.
,
1 spec.
;
SAM-A27937
,
Isipingo Beach
,
KZN
, rock pool,
K.S. Ganga
& G.C.
Naidu
,
14.iv.1979
,
1 spec.
,
SAM-A27938
,
26.iv.1979
,
1 spec.
,
SAM-A27939
,
22.viii.1979
,
1 spec.
, K.S. Ganga,
31.viii.1981
,
1 spec.
,
27.iv.1982
,
1 spec.
Description
Mozambique
specimen (SAM-A27936): eviscerated, 100 x
33 mm
. Colour, in alcohol, beige dorsally, greyish-white ventrally; podia purplish-brown, encircled by white rings. Collar distinct; no special anal papillae. Podia scattered, larger and more numerous ventrally, especially in ambulacra. Cuvierian tubules present.
Discs of body wall tables (
Figure 14A
)
20–38 µm
(mean
25 µm
), mostly reduced, margins uneven; spire height
9–33 µm
(mean
14 µm
). Buttons (
Figure 14B
)
15–26 µm
(mean
21 µm
), with 6–13 minute, often occluded holes, rarely without holes, then resembling rosette-shaped granules. Ventral podia with similar tables and buttons as well as plates (
Figure 14C, D
) (
34–53 µm
, mean
45 µm
) and rods (
Figure 14E
) (
61–119 µm
, mean
103 µm
), the former with paired series of about 10–45 holes; end-plates large (ca.
570 µm
). Dorsal podia also with tables, buttons, rods (
Figure 14F
) (
56–238 µm
, mean
116 µm
) and plates, the latter less well developed than those of ventral podia (
23–60 µm
, mean
35 µm
), and with 5–14 complete holes; end-plates reduced (ca
115 µm
). Tentacles with curved rods (
47–347 µm
, mean
184 µm
) with spinulated ends and slightly spinose margins (
Figure 14G
).
KZN specimens (SAM-A27837-27839): typical but spicules larger than those of the
Mozambique
form: table disc diam.
24–68 µm
, spire height
20–70 µm
, dorsal buttons
15–42 µm
, ventral buttons
37–90 µm
.
FIGURE 14.
Holothuria (Stauropora) pervicax
Selenka, 1867
. SAM–A27936. A. tables from dorso-lateral body wall; B. buttons from dorsal-lateral body wall; C. button-like plates from ventral podia; D. perforated plates from ventral podia; E. rods from ventral podia; F. rods from dorsal podia; G. rods from tentacles. G scale a; (A–C scale b; D–F scale c)
Distribution
Indo-West-Central Pacific Ocean,
0–
60 m
.
Habitat
Benthic, inshore.
Remarks
The single
Mozambique
specimen represents the deepest record of the species yet known as
Rowe and Gates (1995)
record the depth as
0–
20 m
. There is no reason to doubt its identity as the body form, colouration and spicules are characteristic of the species. This species, previously classified in the subgenus
Mertensiothuria
by
Rowe (1969)
was transferred to the subgenus
Stauropora
, also by Rowe (in
Rowe & Gates 1995
).