Rajidae

Biscoito, Manuel, Ribeiro, Cláudia & Freitas, Mafalda, 2018, Annotated checklist of the fishes of the archipelago of Madeira (NE Atlantic): I-Chondrichthyes, Zootaxa 4429 (3), pp. 459-494: 486

publication ID

https://doi.org/10.11646/zootaxa.4429.3.2

publication LSID

lsid:zoobank.org:pub:17EAB027-D9FB-4B8A-9847-3AA76EC96FCB

persistent identifier

http://treatment.plazi.org/id/039887A0-FFF9-FFF9-FF22-FF56FD570479

treatment provided by

Plazi

scientific name

Rajidae
status

 

Family Rajidae 

Dipturus batis (Linnaeus, 1758)  —No common name in Madeira; Blue skate 

Nobre 1935: 475 | Albuquerque 1954 –56: 168 (as Raia batis  )

Fowler 1936: 111 | Noronha & Sarmento 1948: 121 | Maul 1948: 140 | Nunes 1953: 198 (as Raja macrorynchus  )

Stehmann 1973: 62 | Stehmann & Bürkel 1984a: 175 | Sanches 1986: 106 (as Raja (Dipturus) batis 

Lloris et al 1991: 236 (as Raja batis  )

Ebert & Stehmann 2013: 317–321 (as Dipturus  sp. cf. flossada)

Carneiro et al. 2014: 15.

Distribution in Macaronesia. possibly Madeira archipelago, Azores ( Porteiro et al. 2010) and Canary Islands ( Brito et al. 2002; Brito Hernández & Sancho Rafel 2003).

Remarks. Iglésias et al. (2010) have demonstrated that Dipturus batis (Linnaeus, 1758)  is a composite species and provisionally split it into Dipturus  sp. cf. flossada and Dipturus  sp. cf. intermedia  . Last et al. (2016b) retained D. batis  and considered Dipturus  sp. cf. flossada (Risso, 1826) as a junior synonym. Older records from Madeira refer this species as Raja macrorynchus Rafinesque, 1810  ( Fowler 1936; Noronha & Sarmento 1948; Maul, 1948; Nunes 1953). This species is here considered as a junior synonym of D. batis  (see remarks on next section).

Ebert & Stehmann (2013) and Last et al. (2016b) note that both species ( D. batis  and D. intermedius  ) appear to live sympatrically in most of their distribution area, although not occurring with the same abundance, therefore we have opted to place D. batis  as a doubtful record, until specimens from Madeira come to hand.

Raja miraletus Linnaeus, 1758  —No common name in Madeira; Brown ray 

Garman 1913: 323 | Fowler 1936: 116 | Maul 1948: 140 (as Raia quadrimaculata  )

Albuquerque 1954 –56: 153 | Stehmann 1973: 58 | Stehmann & Bürkel 1984a: 187 | Sanches 1986: 98 | Lloris et al 1991: 236 | Wirtz et al. 2008: 4 | Ebert & Stehmann 2013: 370 | Carneiro et al. 2014: 15

Distribution in Macaronesia. possibly Madeira archipelago, Canary Islands ( Brito et al. 2002 as dubious record) and Cape Verde ( Reiner 1996, 2005).

Remarks. Garman (1913) refers the presence in Madeira of R. quadrimaculata Risso, 1827  , now considered a junior synonym of R. miraletus ( Eschmeyer et al. 2017)  , based on Günther’s (1870: 462) Raja circularis  , who in turn gives Madeira based on a specimen ( BMNH 1860.8.30.3) sent by R. T. Lowe. As pointed out above, Lowe’s specimen was observed by one of us (MB) who concluded that in fact it belongs to Leucoraja circularis  . Since no specimens or other material could be found in natural history museum collections, the presence of this species in Madeira is considered as in need of confirmation.