Schizomavella fischeri (Jullien, 1882)

Souto, Javier, Berning, Björn & Ostrovsky, Andrew N., 2016, Systematics and diversity of deep-water Cheilostomata (Bryozoa) from Galicia Bank (NE Atlantic), Zootaxa 4067 (4), pp. 401-459: 449-451

publication ID

http://doi.org/10.11646/zootaxa.4067.4.1

publication LSID

lsid:zoobank.org:pub:1CC5D0E7-0B60-4E62-BACD-9775931ED7F9

persistent identifier

http://treatment.plazi.org/id/862A8F25-FFBF-0C4B-FF65-F9245DD13C1B

treatment provided by

Plazi

scientific name

Schizomavella fischeri (Jullien, 1882)
status

 

Schizomavella fischeri (Jullien, 1882) 

( Figs 119–125View FIGURES 119 – 125, Table 21)

Schizoporella fischeri Jullien, 1882: 15  , pl. 14, figs 32, 33; Jullien 1883: 511, pl. 14, figs 32, 33; Calvet 1907: 422. Schizomavella fischeri: d’Hondt 1973 a: 371  ; d’Hondt 1974: 40; Harmelin & d’Hondt 1992: 44, pl. 5, E-F; Reverter-Gil et al. 2014: 25.

Material examined. MNCNAbout MNCN 25.03 /3981, 3982, locality V01; MNCNAbout MNCN 25.03 / 3983, locality DR 10; OLL 2015 / 921, locality DR05; OLL 2015 / 922, locality DR 10; OLL 2015 / 923, locality DR09.

Remarks. The description of this species was originally based on a single specimen from 1068 m depth from the Iberian continental slope south of Galicia Bank (Jullien 1882). We have recently studied the type material of S. fischeri  , as well as several additional specimens from different areas, within the scope of a revision of NE Atlantic deep-water Schizomavella  species. A thorough description of the species has very recently been published elsewhere (Reverter-Gil et al. 2015). Although the morphology of the different populations varies to some extent (e.g. number of oral spines, sinus width, frontal shield ornamentation), a clear line cannot be drawn between any of these populations based on morphology alone. The Galicia Bank specimens, for instance, deviate slightly from the type in having a frontal shield with a more pronounced reticulate pattern of fine ridges, while in the type the surface is only faintly rugose, whereas all other characters coincide. Genetic studies will certainly be needed to distinguish intra- from interspecific variability.

Schizomavella fischeri  is, at present, considered to occur along the western Iberian shelf and slope to the central Mediterranean Sea at depths of 250–1100 m. At Galicia Bank the species was found at 13 stations between 685 and 1414 m.

SD, standard deviation; N, number of measurements

TABLE 21. Measurements (in mm) of Schizomavella fischeri.

  Minimum Maximum
  20
  20
  22
  22
  12
  12
Avicularium length   15
  15
MNCN

Museo Nacional de Ciencias Naturales

Kingdom

Animalia

Phylum

Bryozoa

Class

Gymnolaemata

Order

Cheilostomatida

Family

Bitectiporidae

Genus

Schizomavella

Loc

Schizomavella fischeri (Jullien, 1882)

Souto, Javier, Berning, Björn & Ostrovsky, Andrew N. 2016

2016
Loc

Schizomavella fischeri: d’Hondt 1973 a: 371

d'Hondt 1973: 371

1973
Loc

Schizoporella fischeri

Jullien 1882: 15

1882