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Silhouetta uvacarpa

Silhouetta uvacarpa

Millard & Bouillon, 1973

GBIF:119376239

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Synonyms

ABOUT

Descriptions(3)

Remarks. The present material is too scarce to allow a new description of this species. Silhouetta uvacarpa is easily recognizable due to the following characters: the tentacles are filiform and arranged in two or more closely-set whorls below the hypostome; the gonophores (medusa buds) arise from both the stem and branches, in clusters borne on quite long pedicels. For descriptions of S. uvacarpa, see Millard & Bouillon (1973) and Calder (1988 b). Schuchert (2007) summarized the actual data available on this species. Additional life cycle studies are necessary in order to describe the mature medusa.
Galea, Horia R. (2008): On a collection of shallow-water hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles. Zootaxa 1878: 1-54, DOI: 10.5281/zenodo.184149
Distribution. Seychelles (Millard & Bouillon 1973), western Atlantic (Calder 1988 b), western Pacific (Kirkendale & Calder 2003).
Galea, Horia R. (2008): On a collection of shallow-water hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles. Zootaxa 1878: 1-54, DOI: 10.5281/zenodo.184149
Material examined. Stn. 7: 25.03.2008 — four small stems, each with 1 – 2 hydranths, one bearing clusters of gonophores, on concretions. Type locality. Silhouette Island, Seychelles.
Galea, Horia R. (2008): On a collection of shallow-water hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles. Zootaxa 1878: 1-54, DOI: 10.5281/zenodo.184149

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CLASSIFICATION

Taxonomic Classification Tree

AnimaliaCnidariaHydrozoaAnthoathecataBougainvilliidaeSilhouettaSilhouetta uvacarpa

Occurrences with images

Source Information

On a collection of shallow-water hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles

checklist

This dataset contains the digitized treatments in Plazi based on the original journal article Galea, Horia R. (2008): On a collection of shallow-water hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles. Zootaxa 1878: 1-54, DOI: 10.5281/zenodo.184149

Abstract

A recent collection of shallow-water hydroids from Guadeloupe and Les Saintes, in the eastern Caribbean Sea, was studied. This is the first comprehensive report on the hydroid fauna from the study area. A total of 48 species, belonging to 9 families of athecates and 12 families of thecates, are described or listed. All the species are illustrated and, when necessary, data on the cnidome composition are provided. Two new species, Zanclea migottoi sp. nov. and Halopteris vervoorti sp. nov., are described. Rhizogeton sterreri (Calder, 1988) is redescribed based on fertile material. Its taxonomic status is discussed and the genus Rhizodendrium Calder, 1988 is included in the synonymy of Rhizogeton L. Agassiz, 1862. Scandia michaelsarsi (Leloup, 1935) is believed to be a synonym of S. gigas (Pieper, 1884), and morphological arguments are provided to support this hypothesis. An undescribed type of peculiar gonothecae, arising from the hydrothecal apertures, was found in Dynamena disticha (Bosc, 1802). Sertularella peculiaris (Leloup, 1935) is redescribed and its synonymy discussed. The nematocyst types of Symmetroscyphus intermedius (Congdon, 1907) were identified. Some species in the present collection are provisionally identified or assigned to a genus, pending the discovery of fertile material or additional life cycle studies. Finally, the hydroid fauna from the study area proves to be preponderantly tropical in nature, with several species also occurring in temperate seas. A number of species are first records for the Caribbean basin: R. sterreri, Eudendrium capillare Alder, 1856, Coryne pusilla Gaertner, 1774, Halecium cf. lankesteri (Bourne, 1890), S. gigas, and Sertularia loculosa Busk, 1852.

Key words: Cnidaria, Hydrozoa, hydroids, tropical western Atlantic, Caribbean Sea, Lesser Antilles, Guadeloupe, Les Saintes

Galea H R, plazi (2008). On a collection of shallow-water hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles. Plazi.org taxonomic treatments database. Checklist dataset https://doi.org/10.5281/zenodo.184149 accessed via GBIF.org on 2026-06-16.

CC0Published 12/31/2008View dataset
GBIF Usage Key
119376239
Dataset Key
086e0d63-8af0-4ad1-8884-03fa56b5ea98
Origin
source
Backbone Key
2266566
Taxon ID
038A8789FFECC144FF1E764026FF7AE5.taxon
Last Crawled
6/11/2026
Last Interpreted
6/11/2026
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