Cryptolaria crassa, Fraser, 1940 a

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: 43

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-FFCC-FFCE-AEC1-5BC61848F879

treatment provided by

Plazi

scientific name

Cryptolaria crassa
status

 

Diphasia crassa Fraser, 1940a 

Synthecium protectum Jäderholm, 1903: 290  , pl. 13, figs. 5, 6.

Diphasia crassa Fraser, 1940a: 579  , pl. 33, figs. 8a, b.

Synthecium crassum  .— Vervoort & Watson, 2003: 246.

Holotype. USNM 43440View Materials: Chile, Reina Adelaida Archipelago, Strait of Magellan , west mouth of straits, R/ V Albatross Sta. 2782, 51°12’S, 74°13’30”W, 472 m, 0 6 February 1888, small beam trawl, one colony, 2.5 cm high, in rather poor condition, without gonophores, labelled “ type ”; ethanol.GoogleMaps 

Type locality. Chile: southwest coast, 51°12’S, 74°13’30”W, 472 m ( Fraser 1940a).GoogleMaps 

Current status. Invalid.

Remarks. The only known name-bearing type material of Diphasia crassa  , fixed originally by Fraser (1940a) as the “ type ” and constituting a single colony, is justifiably listed as a holotype in collections at the NMNHAbout NMNH ( USNMAbout USNM 43440). No specimens assigned to the species exist in the Fraser Hydroid Collection at the RBCMAbout RBCM. The coordinates of the station are imprecise as they reflect a location on an island.

Fraser (1940a) referred this species, with question, to Diphasia L. Agassiz, 1862. Poorly known and described from infertile material, it was listed under Synthecium Allman, 1872  by Vervoort & Watson (2003). Following the suggestion of Horia R. Galea (personal communication, 31 March 2016), D. crassa  is regarded here as a synonym of Synthecium protectum Jäderholm, 1903  (type locality: Cape Valentine, Elephant Island). Of particular note, a distinctive unpaired hydrotheca may occur at the proximal end of each hydrocladium in both D. crassa  and S. protectum  . Jäderholm (1903) also reported that hydrothecae of S. protectum  are partially covered by a flange of the adjoining internode.

NMNH

Smithsonian Institution, National Museum of Natural History

USNM

Smithsonian Institution, National Museum of Natural History

RBCM

Royal British Columbia Museum

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Lafoeidae

Genus

Cryptolaria

Loc

Cryptolaria crassa

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

2018
Loc

Synthecium protectum Jäderholm, 1903 : 290

Jäderholm, 1903 : 290

Loc

crassa

Fraser, 1940a : 579

Loc

Synthecium crassum

Vervoort & Watson, 2003 : 246