Bougainvillia inaequalis Fraser, 1944a

Calder, Dale R. & Choong, Henry H. C., 2018, Names of hydroids (Cnidaria, Hydrozoa) established by Charles McLean Fraser (1872 - 1946), excluding those from Allan Hancock Expeditions, Zootaxa 4487 (1), pp. 1-83: 12-13

publication ID

https://doi.org/10.11646/zootaxa.4487.1.1

publication LSID

lsid:zoobank.org:pub:524B23B9-8EAA-4BD6-8937-A1B8F1C057B9

persistent identifier

http://treatment.plazi.org/id/0392282A-FFED-FFE8-AEC1-5C181C78FD7A

treatment provided by

Plazi

scientific name

Bougainvillia inaequalis Fraser, 1944a
status

 

Bougainvillia inaequalis Fraser, 1944a 

Bougainvillia inaequalis Fraser, 1944a: 51  , pl. 5, figs. 20a–c.

Syntypes. AMNH 3247View Materials: USA, Louisiana, off “ Passa Loutre ” (Pass a Loutre ), 5 miles (8 km) NNE, 15 fm (27 m), 23 January 1931, four monosiphonic colonies or colony fragments, in fair condition, up to 8 mm high, with tattered hydranths, without gonophores, coll. M. Burkenroad; formalin, now in ethanol. 

AMNH 3248View Materials: USA, Louisiana, East Bay , May 1930, one polysiphonic colony, in fair condition but much fragmented and tangled, with hydranths, with gonophores, coll. M. Burkenroad; formalin, now in ethanol. 

AMNH 3251View Materials: USA, Louisiana, off “ Passa Loutre ” (Pass a Loutre ), 15 fm (27 m), 1930, numerous (>100) fragments of a colony or colonies, in poor condition, up to 1.8 cm high, with very few hydranths, without gonophores, coll. M. Burkenroad; formalin, now in ethanol. 

Lectotype, by present designation. AMNH 3248View Materials: USA, Louisiana, East Bay , May 1930, one polysiphonic colony, in fair condition but much fragmented and tangled, with hydranths, with gonophores, coll. M. Burkenroad; formalin, now in ethanol. 

Paralectotypes. AMNH 3247View Materials: USA, Louisiana, off “ Passa Loutre ” (Pass a Loutre ), 5 miles (8 km) NNE, 15 fm (27 m), 23 January 1931, four monosiphonic colonies or colony fragments, in fair condition, up to 8 mm high, with tattered hydranths, without gonophores, coll. M. Burkenroad; formalin, now in ethanol. 

AMNH 3251View Materials: USA, Louisiana, off “ Passa Loutre ” (Pass a Loutre ), 15 fm (27 m), 1930, numerous (>100) fragments of a colony or colonies, in poor condition, up to 1.8 cm high, with very few hydranths, without gonophores, coll. M. Burkenroad; formalin, now in ethanol. 

Type locality. USA, Louisiana: East Bay ( Fraser 1944a). 

Current status. Valid.

Remarks. Fraser (1944a) described Bougainvillia inaequalis  without designating name-bearing types. Nevertheless, type material of the species exists at the AMNHAbout AMNH. One sample ( AMNHAbout AMNH 3248) is listed in the online database of the museum as the holotype, while another ( AMNHAbout AMNH 3247) is listed as a paratype. A third ( AMNHAbout AMNH 3251), not listed in the online database, is recorded on a card file as a paratype. The latter sample contains a label in Fraser’s handwriting, now much faded, supporting the type status of the material. As we interpret the Code ( ICZN Art. 72.4.7), these three are syntypes. Hydroids of the species at the RBCMAbout RBCM ( BCPMAbout BCPM 976-00181-001), collected 14 March 1946 from Aransas Bay, Texas (Arai 1977), are not part of the type series. Neither is a collection at the NMNHAbout NMNH ( USNMAbout USNM 51999) from Grand Isle, Louisiana, a location not included in the type locality. No type material of B. inaequalis  was located in online databases of other museums.

Of the syntypes listed above, the lectotype selected here ( AMNHAbout AMNH 3248) clearly corresponds best with the species as described by Fraser (1944a). As noted above, it has been listed in the past, incorrectly, as the holotype. Although the specimen is fragmentary and in only fair condition, hydranths and gonophores are present on parts of the colony. The lectotype collection also contains stems of a tubulariid. Our lectotype designation restricts the type locality of B. inaequalis  to East Bay, Louisiana, USA. Hydroids in the other two vials ( AMNHAbout AMNH 3247, AMNHAbout AMNH 3251) are paralectotypes.

Notes on card files at the AMNHAbout AMNH indicate that the syntypes were examined decades ago by William J. Rees (1913–1967), who concluded that materials in two of the samples ( AMNHAbout AMNH 3247, AMNHAbout AMNH 3251) probably belong to a different species from that in the third ( AMNHAbout AMNH 3248). In our opinion, however, all are conspecific. Although we are somewhat less certain about the identity of hydroids in AMNHAbout AMNH 3247, we believe they are simply younger specimens.

Bougainvillia inaequalis  is listed as valid in works such as Vannucci & Rees (1961), Cairns et al. (2002), Calder & Cairns (2009), and WoRMS. Deevey (1950) questioned its validity, noting that it seemed to intergrade with B. carolinensis McCrady, 1859  . Defenbaugh & Hopkins (1973), following Fraser (1944a), distinguished B. inaequalis  from B. carolinensis  and B. rugosa Clarke, 1882  in having much wrinkled perisarc on stem and branches. That character is indeed striking, as apparent in the lectotype colony examined here and as illustrated in Fraser (1944a: pl. 5, figs. 20b, c). The nominal species is maintained in this work as valid, although further taxonomic studies of its trophosome and gonosome are warranted. In being an insufficiently described species, with its medusa stage unknown, records of B. inaequalis  from New Zealand are doubtful ( Schuchert 1996).

AMNH

American Museum of Natural History

RBCM

Royal British Columbia Museum

BCPM

British Columbia Provincial Museum

NMNH

Smithsonian Institution, National Museum of Natural History

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Bougainvilliidae

Genus

Bougainvillia

Loc

Bougainvillia inaequalis Fraser, 1944a

Calder, Dale R. & Choong, Henry H. C. 2018

2018
Loc

Bougainvillia inaequalis

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