Names of hydroids (Cnidaria, Hydrozoa) established by Charles McLean Fraser (1872 - 1946), excluding those from Allan Hancock Expeditions
Author
Calder, Dale R.
Author
Choong, Henry H. C.
text
Zootaxa
2018
2018-10-02
4487
1
1
83
journal article
29136
10.11646/zootaxa.4487.1.1
939f52d6-d58b-4a22-8aec-dd5c6a591067
1175-5326
1456161
524B23B9-8EAA-4BD6-8937-A1B8F1C057B9
Aglaophenia transitionis
Fraser, 1941b
Aglaophenia transitionis
Fraser, 1941b
: 87
, pl. 18, figs. 14a, b.
Holotype
.
USNM 43458
:
USA
,
California
, San Francisco, off
Golden Gate, R
/
V
Albatross
Sta.
3150,
37°47’N
,
122°44’10”W
,
38 m
,
21
March 1890
, large beam trawl, one colony, badly broken up, with several fragments of a hydrocaulus and numerous detached, fragmented hydrocladia, without gonophores, labelled “
type
”; ethanol.
Paratypes
.
BCPM 976-00811-001
:
USA
,
California
,
San Francisco
, off
Golden Gate
,
38 m
, several colony fragments, up to
6.3 cm
high, in poor condition, without gonophores; dry.
Type
locality.
USA
,
California
: off
Golden Gate
,
37°47’N
,
122°44’10”W
, 21 fm (
38 m
) (
Fraser 1941b
).
Current status.
Valid.
Remarks.
In describing
Aglaophenia transitionis
,
Fraser (1941b)
designated material from the NMNH (USNM 43458) as the “
type
.” That collection, thereby fixed as the name-bearing
type
(ICZN Art. 72.1.2), is currently listed as a
syntype
in the NMNH online database. Although Fraser’s “
type
” is now badly fragmented, we believe it is based on a single specimen and is a
holotype
. Material from the same collection at the RBCM (BCPM 976-00811-001) is excluded as a name-bearing
type
in not having been fixed as such in the original description (ICZN Art. 72.1.2). It constitutes a
paratype
.
Fraser (1941b)
did not observe fertile specimens of
Aglaophenia transitionis
, and we saw no gonophores on the
holotype
. This species is listed as valid in WoRMS but remains poorly known.