Chartella elongata Cook, 1968

Ramalho, Laís V., Rodríguez-Aporta, Raquel & Gofas, Serge, 2022, Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species, Zootaxa 5094 (1), pp. 53-91 : 67

publication ID

https://doi.org/ 10.11646/zootaxa.5094.1.2

publication LSID

lsid:zoobank.org:pub:EBF67241-D93F-48CD-9548-463F0B0A9D47

DOI

https://doi.org/10.5281/zenodo.6301220

persistent identifier

https://treatment.plazi.org/id/D10787E6-FFE9-3F3D-C1BA-979FC7C3F880

treatment provided by

Plazi

scientific name

Chartella elongata Cook, 1968
status

 

Chartella elongata Cook, 1968 View in CoL

( Fig. 5E, F View FIGURE 5 )

Chartella elongata Cook, 1968: 136 View in CoL , fig. 7.

Hincksinoflustra elongata: d’Hondt 1978: 450 ; Álvarez 1992b: 284, fig. 8.

Material examined. MNCN 25.03/4288; MNCN 25.03/4289: BV-13, 95– 99 m; coll. UMA; one living colony, attached on bioclast and one fragment without substrate, respectively.

Description. Colony delicate, erect, slightly calcified, with branched, bilaminar fronds composed of up to 9–10 linear zooidal series. Zooids rectangular, longer than wide [L 870–975–1065 (N 11, SD 73), W 180–194–215 μm (N 11, SD 11)], placed in quincunx; operculum D-shaped; a pair of small latero-distal spines. Avicularium located distal to the zooids, at the bifurcation of the zooidal rows, directed distally; mandible semicircular; cystid rectangular [L 100–133–169 (N 5, SD 30), W 102–117–136 μm (N 5, SD 14)]. Ovicell not observed.

Remarks. Six species of Chartella are known worldwide. Three species occur in the Mediterranean Sea: C. papyracea ( Ellis & Solander, 1786) , C. papyrea ( Pallas, 1766) and C. tenella ( Hincks, 1887) . Chartella papyracea has no avicularium; C. tenella has a pair of spines but the avicularium has a triangular, acute mandible and is directed obliquely ( Gautier 1962); C. papyrea is characterized by the absence of avicularia and spines, and by small, endooecial ovicells ( Gautier 1962). Cook (1968), in the original description, mentioned that C. elongata lacks oral spines, but Redier & d’Hondt (1976) examined the holotype and observed zooids with a pair of oral spines. This observation has been reaffirmed in two subsequent works (d’Hondt 1978, 1979). The size of zooids and avicularia in the Alboran platform material is similar to that of previous records (e.g. Gulf of Cadiz: zooids: L 790–1112, W 177–322 µm; avicularia: L 95–160, W 94–145 µm; Álvarez 1992b). Chartella elongata was described from the eastern Atlantic off the Mauritania – Western Sahara border, and later reported from Morocco and the Gulf of Cadiz at depths of 12–80 m ( Cook 1968; d’Hondt 1978; Álvarez 1992b). In the Alboran platform, the colonies were found at 95–99 m, slightly increasing its bathymetric range and expanding its geographic distribution to the Alboran Sea.

MNCN

Museo Nacional de Ciencias Naturales

UMA

University of Massachusetts, Museum of Zoology

Kingdom

Animalia

Phylum

Bryozoa

Class

Gymnolaemata

Order

Cheilostomatida

Family

Flustridae

Genus

Chartella

Loc

Chartella elongata Cook, 1968

Ramalho, Laís V., Rodríguez-Aporta, Raquel & Gofas, Serge 2022
2022
Loc

Hincksinoflustra elongata: d’Hondt 1978: 450

Alvarez, J. A. 1992: 284
1992
Loc

Chartella elongata

Cook, P. L. 1968: 136
1968
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