Conspectus cobitidum - Raffles Museum of Biodiversity Research

(type locality: India: Manipur: Chindwin drainage,
Lokchao River near Moreh, 110 km from Imphal City;
holotype: MUMF 3333/1A; adjective, -is, -is, -e)
Nomenclatural notes. Words ending in -cola and meaning
'inhabitant of' are nouns and indeclinable.
7.7.4 Homalopteroides smithi (Hora, 1932)
Homaloptera smithi Hora, 1932a: 286, pl. 11 fig. 3 (type
locality: Thailand: Nakon Sritamarat Province: Tadi
Stream and Klong Pong at Ban Kiriwong; syntypes:
KUMF 165 [3], USNM 107941 [1], 109821 [5],
119459 [1], ZSI F 11293–11294/1 [4], 11295/1 [2], Menon
& Yazdani, 1968: 118, Eschmeyer & Fricke, 2010;
noun in genitive, indeclinable)
? Homaloptera maxinae Fowler, 1937: 152, figs. 52–53 (type
locality: Thailand: Tachin [Tha Chin, Samut Sakhon;
13°32'22"N 100°15'20"E]; holotype: ANSP 68004; noun
in genitive, indeclinable)
Homaloptera lineata Smith, 1945: 277, fig. 55 (type locality:
Thailand: Mekong at Chiangsen Kao; holotype:
USNM 199488; adjective, -us, -a, -um)
? Homaloptera indochinensis Silas, 1953: 192, fig. 2 (type
locality: "Indo-China (? Tonkin)" [Vietnam: Kontum; see
below]; holotype: BMNH 1933.8.19.50; adjective, -is,
-is, -e)
Taxonomic notes. Homaloptera indochinensis is based on
a single specimen without precise locality. From Silas's description,
it appears to fall within the variation of H. smithi,
a very common species in the Mekong drainage. From information
by E. Trewavas to S. L. Hora (in Silas, 1951: 11),
the specimen had no locality label but Delacour & Lowe
had collected in "Pekh, N. Tonkin [northern Vietnam; ? Pakha];
Xien Khonang or Chin chuang, Laos [Xieng Khouang]
and Kontum and Dak-to in Annam [Vietnam: Kontum and
Dak To]". This material is registered as BMNH 1933.8.19.1–
100. In fact this material had already been catalogued earlier
as BMNH 1933.8.4.1–100. In this earlier list this specimen
appears as H. wassinki, BMNH 1933.8.4.51, and the
locality is listed as Kontum.
Delacour conducted six expeditions to Laos, Cambodia
and Vietnam between 1923 and 1939; Lowe accompanied
him in five of these. There is no mention of fishes in the
surviving Delacour notebooks (A. Hennache, pers. comm.),
most of which disappeared in 1939. Hennache & Dickinson
(2000) provided details of Delacour's expeditions, and from
them it appears that Delacour and Lowe collected only once
in Xieng Khouang, Kontum and Dakto before 1936. They
collected at these localities during the second expedition in
1925–1926 (see also Delacour et al., 1927). Additional fish
material collected by Delacour and Lowe is in MNHN but
were collected during the third (1926–1927) and fourth
(1927–1929) expeditions, except for the types of Oreoglanis
delacouri (MNHN 1936.31; see Ng & Kottelat, 1999:
379), which must have come from the second expedition.
No species of Homaloptera is known from the coastal
streams on the eastern slope of the Annam Range and in the
Red River drainage and this seems to eliminate Tonkin from
the list of potential localities. Hennache & Dickinson (2000)
mentioned two localities at which Delacour collected while
in Xieng Khouang: Muongsoui [Muang Sui, nowaday Phu
THE RAFFLES BULLETIN OF ZOOLOGY 2012
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Kut, about 19°40'N 103°E in Nam Ngum drainage, a Mekong
tributary] and Phu Ké, which is not on my maps, apparently
Phu Keng, a hill about 18 km west-northwest of Phonsavan
and also in Nam Ngum drainage. I conducted surveys in
Xieng Khouang and the upper Nam Ngum in 1999 and 2012
and have not seen H. smithi or any H. indochinensis-like
fish. I also have not observed this species in northern Laos
in surveys conducted in 1997, 1999 and 2007.
Hennache & Dickinson (2000) did not provide details
on the Kontum and Dakto localities. Both places are in the
Sesan drainage, a tributary of the Mekong. The Sesan joins
the Xe Kong shortly before entering the Mekong in Cambodia.
Homaloptera smithi is a common species in the Xe Kong
(pers. obs.). This makes Kontum or Dakto a likely type locality.
7.7.5 Homalopteroides tweediei (Herre, 1940)
Homaloptera tweediei Herre, 1940: 7, pl. 1 (type locality:
Malaysia: Johore: Mawai District, shallow rapid creek,
about 40 miles north of Singapore; holotype: CAS-SU
33102, Böhlke, 1953: 40; noun in genitive, indeclinable)
7.7.6 Homalopteroides wassinkii (Bleeker, 1853)
Homaloptera fasciata van Hasselt, 1823: 133, 1824: 377
(nomen nudum; Kottelat, 1987b: 373)
Balitora ocellata Valenciennes, in Cuvier & Valenciennes,
1846: 96 (type locality: Indonesia: Java: Buitenzorg
[Bogor]; syntypes: MNHN 3122 [1] and specimen illustrated
by Kuhl and van Hasselt [reproduced in Roberts,
1993: fig. 27]; secondary junior homonym of Homaloptera
ocellata van der Hoeven, 1830: 211 when placed
in Homaloptera by Bleeker, 1860c: 95; adjective, -us,
-a, -um)
Homaloptera Wassinkii Bleeker, 1853a: 163 (type locality:
Indonesia: Java: Tjampea [Ciampea] and Buitenzorg
[Bogor]; lectotype: RMNH 4987, designated by Alfred,
1961: 36; noun in genitive, indeclinable)
Homaloptera valenciennesi Bleeker, 1860c: 95 (replacement
name for Homaloptera ocellata Valenciennes, in Cuvier
& Valenciennes, 1846: 96; noun in genitive, indeclinable)
Homaloptera fasciata Bleeker, 1860c: 96 (unnecessary replacement
name for H. wassinkii Bleeker, 1853a: 163;
adjective, -us, -a, -um)
Nomenclatural notes. Roberts (1993: 25) considered specimen
MNHN 3122 as the holotype of Balitora ocellata. Valenciennes
based his description on a single specimen and
on the drawing sent by Kuhl and van Hasselt, as is obvious
from the mention of the colour in life (p. 97) and explicit in
the comment at the end of the description of B. pavonina (p.
99). Unless it can be demonstrated that the specimen examined
by Valenciennes is the same as figured by Kuhl and van
Hasselt, there is no holotype but a series of syntypes.
7.8 Homalopterula Fowler, 1940
Homalopterula Fowler, 1940: 379 (type species: Homalopterula
ripleyi Fowler, 1940: 379, by original designation).
Gender feminine.