Adeonella distenta Hayward, 1988

Amui, Ann-Margret, 2005, Adeonellas from the Gulf of Aden including one new species, Zootaxa 1012 (1), pp. 45-52 : 48

publication ID

https://doi.org/ 10.11646/zootaxa.1012.1.5

publication LSID

lsid:zoobank.org:pub:1CCDAB0D-FC9E-42FF-A06F-6D1DA0CD7D0F

persistent identifier

https://treatment.plazi.org/id/03A887C3-F00F-FFC1-6365-FEC7FE535451

treatment provided by

Felipe

scientific name

Adeonella distenta Hayward, 1988
status

 

Adeonella distenta Hayward, 1988

Figure 2, 1–2

Adeonella distenta Hayward, 1988: 180–181 , fig. 27

Specimen examined: Bab­el­Mandeb; 12° 43.7’N’ 43° 15.0’E; 228–235m, 05.03.1987, Meteor Station Me 5 230 Ku, SMF 1907 About SMF GoogleMaps .

Distribution: Gulf of Aden

Description: Colony 5 x 1.5 mm. Autozooids very distinctive: large, broad, rounded distally; frontal wall granulated, with numerous small pores. Primary orifice is assumed to be semicircular, obscured in early ontogeny by narrow, spout­like peristome with transversely oval secondary orifice (0.10–0.11 x 0.07–0.08mm); spiramen (0.03–0.05 x 0.03–0.05mm) round, somewhat depressed, situated close to secondary orifice. Peristomial avicularium single, situated disto­lateral to spiramen, directed obliquely medially between spiramen and secondary orifice to opposite proximal edge of peristome; elongate, sharply pointed.

Remarks: This is the second occurence of A. distenta . The holotype is originated the Gulf of Aden from a depth of 274– 366m. This specimen is from the same region at a similar depth, the upper mesopelagic zone. Hayward (1988) already suggests that A. distenta lives at greater depths than most species of Adeonella .

Polymorphism in this species is so far unknown and could not be observed in this specimen neither.

Kingdom

Animalia

Phylum

Bryozoa

Class

Gymnolaemata

Order

Cheilostomatida

Family

Adeonellidae

Genus

Adeonella

Loc

Adeonella distenta Hayward, 1988

Amui, Ann-Margret 2005
2005
Loc

Adeonella distenta

Hayward, P. J. 1988: 181
1988
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