Cucamba psolidiformis (Vaney)

O’Loughlin, Mark, Manjón-Cabeza, Eugenia & Ruiz, Francina Moya, 2009, Antarctic holothuroids from the Bellingshausen Sea, with descriptions of new species (Echinodermata: Holothuroidea), Zootaxa 2016, pp. 1-16: 2-3

publication ID

10.5281/zenodo.185959

persistent identifier

http://treatment.plazi.org/id/F31587C2-7958-FF9C-9FDE-F91C142F12B7

treatment provided by

Plazi

scientific name

Cucamba psolidiformis (Vaney)
status

syn. nov.

Cucamba psolidiformis (Vaney)  syn. nov., comb. nov.

Table 1.

Cucumaria psolidiformis Vaney, 1908: 27  –28, pl. 2 figs 17, 18, pl. 4 figs 51–53.— Ekman, 1925: 89 –92, fig. 19.— Panning, 1949: 416.— Panning, 1955: 38.— Pawson, 1969: pl. 22 map 2.

Cucumaria conspicua Vaney, 1908: 29  , pl. 2 figs 15, 16, pl. 5 fig. 67.— Panning, 1949: 416.— Panning, 1955: 38.— Pawson, 1969: pl. 22 map 2 (new synonym).

Cucumaria armata Vaney, 1908: 31  –32, pl. 5 figs 57, 58 (new synonym).

Caespitugo diversipes Gutt, 1990: 102  –104, figs 1–4, table 1.— Gutt, 1991: 323 –324.—O’Loughin et al., 1994: 549, 555, table 2 (new synonym).

Remarks. Cucumaria psolidiformis Vaney, 1908  has a circum-polar distribution (M. O’Loughlin pers. obs.). The distinguishing characters of Cucumaria psolidiformis Vaney  and Caespitugo diversipes Gutt, 1990  are: hard parchment-like body wall; long thin tail; mouth and anus terminal; 10 dendritic tentacles with ventral pair small; distinctive radial tube feet; inconspicuous interradial tube feet; irregular, perforated, elongate, narrow, thick, knobbed, single-layered, body wall ossicles. Caespitugo diversipes Gutt, 1990  is judged to be a junior synonym of Cucumaria psolidiformis Vaney, 1908  . Cucumaria psolidiformis Vaney, 1908  is referred to Cucamba O’Loughlin  gen. nov. that has the diagnostic characters listed above.

O’Loughlin (2002) synonymised Cucumaria conspicua Vaney, 1908  with Psolicrux coatsi ( Vaney, 1908)  . That synonymy is rejected here, based on a closer reading of the description by Vaney (1908) of the single small type specimen (10 mm long) that includes: large tube feet along the radii, and numerous very small tube feet over the interradii. The only Antarctic holothuroid with this type of tube foot arrangement is Cucumaria psolidiformis Vaney, 1908  . On this basis Cucumaria conspicua Vaney, 1908  is a junior synonym of Cucumaria psolidiformis Vaney, 1908  .

Ekman (1925) synonymised Cucumaria armata Vaney, 1908  with Cucumaria georgiana ( Lampert, 1886)  , and C. armata  has been included in the “ Cucumaria georgiana ( Lampert, 1886)  group” created by Gutt (1988) and followed by Massin (1992). Cucumaria armata Vaney, 1908  is removed from that synonymy in this work. It is judged in this work to be a junior synonym of Cucumaria psolidiformis Vaney, 1908  , based on the following characters described by Vaney (1908): large numbers of small, close dorso-lateral tube feet; large, thick, irregular, often narrow, knobbed perforated plates (characteristic of C. psolidiformis  ).

Kingdom

Animalia

Phylum

Echinodermata

Class

Holothuroidea

Order

Dendrochirotida

Family

Cucumariidae

Genus

Cucamba

Loc

Cucamba psolidiformis (Vaney)

O’Loughlin, Mark, Manjón-Cabeza, Eugenia & Ruiz, Francina Moya 2009

2009
Loc

Caespitugo diversipes

Gutt 1991: 323Gutt 1990: 102

1991
Loc

Cucumaria conspicua

Panning 1955: 38
Panning 1949: 416Vaney 1908: 29

1949
Loc

Cucumaria psolidiformis

Panning 1955: 38
Panning 1949: 416
Ekman 1925: 89Vaney 1908: 27

1925
Loc

Cucumaria armata

Vaney 1908: 31