Hippaliosina imperfecta ( Canu & Bassler, 1928a )

Ramalho, Laís V., Taylor, Paul D., Moraes, Fernando Coreixas, Moura, Rodrigo, Amado-Filho, Gilberto M. & Bastos, Alex C., 2018, Bryozoan framework composition in the oddly shaped reefs from Abrolhos Bank, Brazil, southwestern Atlantic: taxonomy and ecology, Zootaxa 4483 (1), pp. 155-186: 169

publication ID

https://doi.org/10.11646/zootaxa.4483.1.6

publication LSID

lsid:zoobank.org:pub:05A08470-9473-4147-B54B-AB0C90173572

persistent identifier

http://treatment.plazi.org/id/6C3EF226-FFAB-7900-FF43-FBC8FD3CF94D

treatment provided by

Plazi

scientific name

Hippaliosina imperfecta ( Canu & Bassler, 1928a )
status

 

Hippaliosina imperfecta ( Canu & Bassler, 1928a) 

( Fig. 5FView FIGURE 5)

Gephyrophora imperfecta Canu & Bassler, 1928a: 86  , fig. 1.

Hippaliosina imperfecta: Marcus, 1949: 26  , fig. 40; 1955: 306, figs 78, 79; Winston et al., 2014: 209, fig. 44; Almeida et al., 2015a: 5; Almeida et al., 2017: 303, figs 60, 61; Bastos et al., 2018: table 1.

Material examined. Abrolhos Bank, Bahia State, Brazil: MNRJ-Bry1343, Parcel dos Abrolhos, 4 m depth, February 2014, col. R. Moura, G. Amado-Filho & A. Bastos. 

Short description. Encrusting colony with zooids hexagonal or polygonal; frontal wall granular with only small, rounded areolar pores. Orifice rounded distally and concave proximally with a pronounced pair of condyles. A pair of avicularia, occasionally only one, located latero-distally to the orifice, rostrum elongated and triangular. Ovicell not observed.

Geographic distribution. Bahia, Espírito Santo and Rio de Janeiro states, Brazil ( Marcus 1949, 1955; Winston et al. 2014; Almeida et al. 2015a; Almeida et al. 2017; Bastos et al. 2018).

Remarks. Hippaliosina imperfecta  is characterized mainly by the paired avicularia (rarely one) with spearshaped rostra located latero-distally to the orifice. It resembles H. rostrigera ( Smitt, 1873)  but differs in the size of the orifice (shorter in H. rostrigera  ) and the shape/position of the avicularia (beginning above the orifice and with the rostrum slightly curved in H. rostrigera  ).

Kingdom

Animalia

Phylum

Bryozoa

Class

Gymnolaemata

Order

Cheilostomatida

Family

Hippaliosinidae

Genus

Hippaliosina

Loc

Hippaliosina imperfecta ( Canu & Bassler, 1928a )

Ramalho, Laís V., Taylor, Paul D., Moraes, Fernando Coreixas, Moura, Rodrigo, Amado-Filho, Gilberto M. & Bastos, Alex C. 2018

2018
Loc

Gephyrophora imperfecta

Canu & Bassler, 1928a : 86

Loc

Hippaliosina imperfecta: Marcus, 1949 : 26

Marcus, 1949 : 26 Winston et al., 2014 : 209 Almeida et al., 2015a : 5 Almeida et al., 2017 : 303