Sphaerocystis heteronema Fraser, 1943a

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: 53

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-FFD2-FFD0-AEC1-5A581A55F87F

treatment provided by

Plazi

scientific name

Sphaerocystis heteronema Fraser, 1943a
status

 

Sphaerocystis heteronema Fraser, 1943a 

Plumularia dendritica Nutting, 1900: 67  , pl. 8, figs. 4–6.

Sphaerocystis heteronema Fraser, 1943a: 85  , pl. 20, figs. 17a, b.

Holotype. MCZ-IZ 9002: Bahamas, Pourtalès Gulf Stream Exploration , USCSS Bibb Sta. 162, Orange Key (Orange Cay), 9 fm (16 m), one small and fragmentary colony, about 1.2 cm high, without gonophores, labelled “ type ”; dry. 

Type locality. Bahamas: off Orange Key (Orange Cay), 9 fm (16 m) ( Fraser 1943a). 

Current status. Invalid.

Remarks. Type material of Sphaerocystis heteronema Fraser, 1943a  is known to exist only at the MCZAbout MCZ (MCZ- IZ 9002). No type of the species was designated by Fraser (1943a), but his description was based on a single colony, constituting the holotype by monotypy. That specimen is now dry, accompanied by a note stating “found dry (prior to 1983)”. Nevertheless, three fragments of a single hydrocaulus, and several detached hydrocladia, were found in the vial. Although desiccated, and constituting a very small colony of a particularly large species, its morphology is still apparent and its identity quite certain. As noted above in remarks on the genus Sphaerocystis Fraser, 1943a  , S. heteronema Fraser, 1943a  is a junior subjective synonym of Plumularia dendritica Nutting, 1900  , a species now frequently assigned to the genus Dentitheca Stechow, 1920  . In common with S. heteronema  , the type locality of D. dendritica  is the Bahamas (near Little Cat Island).

MCZ

Museum of Comparative Zoology

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Plumulariidae

Genus

Sphaerocystis

Loc

Sphaerocystis heteronema Fraser, 1943a

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

2018
Loc

Plumularia dendritica

Nutting, 1900 : 67

Loc

Sphaerocystis heteronema

Fraser, 1943a : 85