Conspectus cobitidum - Raffles Museum of Biodiversity Research

Parasewellia polylobata Nguyen [H. D.] & Nguyen [V. H.],
in Nguyen [V. H.], 2005: 548, fig. 3 (type locality: Vietnam:
Quang Nam Province: Thu Bon River [a coastal
drainage south of Danang]; holotype: HNUE; also spelt
polyloba in caption of fig. 3, as first reviser I select polylobata
as the correct original spelling; subjective simultaneous
synonym of Parasewellia monolobata Nguyen
& Nguyen, in Nguyen, 2005: 546; as first reviser, I give
precedence to P. monolobata; adjective, -us, -a, -um)
8.16.10 Sewellia patella Freyhof & Serov, 2000
Sewellia patella Freyhof & Serov, 2000a: 235, figs. 13–14
(type locality: Vietnam: Gia Lai Province: stream Azun
about 30 km east of Pleiku; 14°02'34"N 108°21'07" E;
holotype: ZFMK 20962; noun in apposition, indeclinable)
8.16.11 Sewellia pterolineata Roberts, 1998
Sewellia pterolineata Roberts, 1998: 277, fig. 4 (type locality:
Vietnam: Nghia Bin Province: Trac Khuc River; holotype:
RMNH 31832; adjective, -us, -a, -um)
8.16.12 Sewellia speciosa Roberts, 1998
Sewellia speciosa Roberts, 1998: 279, fig. 5 (type locality:
Laos: Attapu Province.: lower Xe Nam Noi 1.5 km downstream
from bridge on route 232 to Attapu, 26 km from
Ban Nam Tang, 270 masl; holotype: ZRC 40368; adjective,
-us, -a, -um)
8.16.13 Sewellia trakhucensis Nguyen & Nguyen, in
Nguyen, 2005
Sewellia trakhucensis Nguyen [H. D.] & Nguyen [V. H.], in
Nguyen [V. H.], 2005: 583, fig. 23 (type locality: Vietnam:
Quang Ngai Province, Son Ha, Tra Khuc River;
holotype: HNUE; adjective, -is, -is, -e)
8.17 Vanmanenia Hora, 1932
Homalosoma Boulenger, 1901: 270 (name not available,
incorrect subsequent spelling for Homaloptera van Hasselt,
1823: 133 [Boulenger, in litt. to Hora, 1932: 309]; [if
treated as available then: type species: Homalosoma stenosoma
Boulenger, 1901: 270, by monotypy; junior homonym
of Homalosoma Wagler, 1830: 190 in Reptilia, and
Homalosoma Agassiz, 1848: 531 in Coleoptera; not junior
homonym of Homalosoma Oersted, in Keferstein,
1865: 436, in Vermes, which is not available because listed
in synonymy (Code art. 11.6)]). Gender neuter.
Vanmanenia Hora, 1932a: 309 (type species: Homalosoma
stenosoma Boulenger, 1901: 270, by original designation).
Gender feminine.
Praeformosania Fang, 1935a: 71 (type species: Praeformosania
pingchowensis Fang, 1935a: 72, by original designation).
Gender feminine.
Taxonomic notes. The validitidy of the many names created
in recent years in the Vietnamese literature cannot be evaluated.
The descriptions are of little use and the quality of the
illustrations of most species does not allow to guess their
identity. As most species have very restricted ranges, it is
expected that those from widely distant localities might in
THE RAFFLES BULLETIN OF ZOOLOGY 2012
71
fact be valid, while the many species described from exactly
the same locality may be found to represent single species.
For some species there is not even informative locality data.
The colour pattern of Vanmanenia species strikingly changes
with growth.
Nomenclatural notes. Boulenger (1901: 270) used the name
Homalosoma, without mentioning it as a new genus. Since,
authors have speculated as to whether it was intended as a
new genus or was a lapsus for Homaloptera and/or a confusion
with the snake genus Homalosoma (Boulenger also
published on reptiles). The answer to these speculations has
already been given by Boulenger himself in a letter to Hora
(1932: 309): "Homalosoma stenosoma is obviously a lapsus
calami for Homaloptera stenosoma and only a lapsus
memoriae could account for my using Homalosoma to denote
a new genus, that name being in use for a well known
genus of snakes". Therefore, Homalosoma is an incorrect
subsequent spelling of Homaloptera. Should one consider it
as available, it would be permanently invalid as a junior homonym
for Homalosoma Wagler, 1830 (see above).
Species inquirenda et incertae sedis
8.17.1 ? Vanmanenia multiloba (Mai, 1978)
Homaloptera multiloba Mai, 1978: 208, fig. 95 (type locality:
northern Vietnam; syntypes: DVZUT; compound
noun, indeclinable)
Species inquirenda et incertae sedis
8.17.2 ? Vanmanenia nahangensis Nguyen, 2005
Vanmanenia nahangensis Nguyen, 2005: 572, fig. 17 (type
locality: Vietnam: Tuyen Quang Province: Na Hang district:
Gam River; holotype: NCNTTSI; also spelt nahangenis
p. 573, an obvious inadvertent error, thus incorrect
original spelling [Code art. 32.5.1]; adjective, -is,
-is, -e)
Species inquirenda et incertae sedis
8.17.3 Vanmanenia tetraloba (Mai, 1978)
Homaloptera tetraloba Mai, 1978: 210, fig. 97 (type locality:
northwestern Vietnam; syntypes: DVZUT; compound
noun, indeclinable)
Species inquirenda et incertae sedis
8.17.4 Vanmanenia ventrosquamata (Mai, 1978)
Homaloptera ventrosquamata Mai, 1978: 209, fig. 96 (type
locality: Vietnam: Cau River [Bac Thai, Bac Giang and
Bac Ninh provinces]; syntypes: DVZUT; adjective, -us,
-a, -um)
8.17.5 Vanmanenia caldwelli (Nichols, 1925)
Homaloptera caldwelli Nichols, 1925c: 1 (type locality:
China: Fukien [Fujian]: near Yenping; holotype: AMNH
8413; noun in genitive, indeclinable)
8.17.6 Vanmanenia caobangensis Nguyen, 2005
Vanmanenia caobangensis Nguyen, 2005: 571, fig. 16 (type
locality: Vietnam: Cao Bang Province: Bang Giang River
at Cao Bang, Red River drainage; holotype: NCNTT-
SI; adjective, -is, -is, -e)