Cryptolaria crassa, Fraser, 1941 b

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 : 20

publication ID	https://doi.org/ 10.11646/zootaxa.4487.1.1
publication LSID	lsid:zoobank.org:pub:524B23B9-8EAA-4BD6-8937-A1B8F1C057B9
DOI	https://doi.org/10.5281/zenodo.5968297
persistent identifier	https://treatment.plazi.org/id/0392282A-FFF5-FFF7-AEC1-5EE91BABFAB7
treatment provided by	Plazi
scientific name	Cryptolaria crassa
status

Treatment

Tubularia crassa Fraser, 1941b

Tubularia crassa Fraser, 1941b: 81 , pl. 14, figs. 5a, b.

Syntypes. USNM 22746 About USNM : USA, Massachusetts, off Martha’s Vineyard , 40°49’30”N, 70°47’W, R/ V Fish Hawk Sta. 988, 0 7 September 1881, 55 m, rake dredge, two polyps, labelled “ type ”; ethanol. GoogleMaps

Lectotype, by present designation. USNM 22746 About USNM : USA, Massachusetts, off Martha’s Vineyard , 40°49’30”N, 70°47’W, R/ V Fish Hawk Sta. 988, 0 7 September 1881, 55 m, rake dredge, one polyp, in fairly good condition, with gonophores, labelled “ type ”; ethanol. GoogleMaps

Paralectotype. USNM 1458912 About USNM : USA, Massachusetts, off Martha’s Vineyard , 40°49’30”N, 70°47’W, R/ V Fish Hawk Sta. 988, 0 7 September 1881, 55 m, rake dredge, one polyp, in poor condition, with gonophores; ethanol. GoogleMaps

Type locality. USA, Massachusetts: off Martha’s Vineyard , 40°49’30”N, 70°47’W, 30 fm (55 m) ( Fraser 1941b). GoogleMaps

Current status. Invalid.

Remarks. Fraser (1941b) designated material at the NMNH as the “ type ” of Tubularia crassa (USNM 22746). The collection contains two specimens. One had been proposed as the lectotype and the other as a paralectotype of the species by K.W. Petersen in inter-museum correspondence, but the designations were never published and cannot be upheld as valid. The same designations are repeated here, with the lectotype having the original collection number (USNM 22746) and the paralectotype being assigned a new number (USNM 1458912).

The two original syntypes were also examined by Calder (1975), who concluded that they were identical with Corymorpha pendula L. Agassiz, 1862 . As with that species, the hydroids appear to be solitary inhabitants of soft substrates, hydrocauli are thick and parenchymatic, hydranths have smaller oral and larger aboral whorls of tentacles, and gonosomes are fixed sporosacs rather than free medusae (L. Agassiz 1862; Fraser 1944a). WoRMS currently lists T. crassa as a taxon inquirenda.