Erethistes
jerdoni (Day, 1870)
|
| |
| Image
contributors to this species: |
|
Steven Grant (2)
Adrian
Taylor
(2)
Beta Mahatvaraj (4) Johnny
Jensen's Photographic Library (4) |
| ScotCat
Sources: |
|
| Other
Sources: |
 
|
| |
| Relevant
Information: |
The images of the albino
specimen were collected from Toofangang, Coochbehar District, West
Bengal and was only the second albino specimen to be collected there.
Occurs in slow-moving hill streams with sandy bottom, rivers and
beels. A very sluggish fish. In Ferraris (2007) Erithistes
has been moved back to its original placement in the Sisoridae family
which had been moved there by de Pinna in 1996, along with Conta,
Erethistoides, Hara and Pseudolaguvia. In late
October 2006 Ichthyologists Alfred W Thompson & Lawrence M Page
of the Florida Museum of Natural History; Gainesville. USA. Published
a paper on the Genera of the Asian catfish families Sisoridae and
Erethistidae. Where in part they set forth their diagnosis and reasons
for reclassifying or more to the point reassigning Hara species
as Erethistes species and keeping the Erethistidae family
intact. So for this mini factsheet Hara jerdoni is now
Erethistes jerdoni.
The Thompson and Page paper state thus: "Meanwhile, even though
some of the genera are poorly diagnosed and appear to lack traits
to distinguish them from other genera, descriptions of new species
in Sisoridae and Erethistidae continue to appear (e.g., Ng &
Kottelat, 2000; Britz & Ferraris, 2003; Ng, 2004a). We believe
that ZOOTAXA an analysis and summary of the literature and descriptions
of valid diagnostic traits, especially external morphological traits,
will significantly facilitate accurate taxonomic revisions in these
families. As currently recognized, Erethistidae contains six genera
and about 25 species, and Sisoridae contains 16 genera and about
144 species. Aquarium Care: A sand substrate that
has small rounded pebbles roughly scattered in amongst it, with
a few grass and fern like plants intermittently planted would make
an ideal biotype for them to live in. Small danio's and rasbora's
make excellent tank mates. Good water quality is essential in keeping
these catfish for any length of time or attempting to breed them,
as they tend not to tolerate too well nitrate levels above 12.5mg/l.
Ideally a pH range from 6.7 to 7.2 and a GH between 6 and 12 should
be provided. Temperature is not critical as long as there is a high
level of dissolved oxygen present at the higher temperatures, however;
they seem more at home in the cooler temperatures of between 20°C
and 22°C. Diet: Varied live foods such as small
bloodworms, grindal worms, sifted daphnia, cyclops and newly hatched
brine shrimp should be provided as they tend not to feed on prepared
food. |
| Common
Name: |
Dwarf
Anchor Catfish |
| Synonyms: |
Hara
jerdoni |
| Family: |
Erethistidae |
| Distribution: |
Asia: India, Bangladesh.
Type locality: River Kosi, now Hooghly River south
of Ranaghat, by neotype designation. |
| Size:
|
2.5cm.
(1ins) |
| Temp: |
23-27°c (72-78°f.) |
| p.H. |
6.2-7.2. |
| Reference: |
www.asiancatfish.com
Thomson, A.W. and L.M. Page 2006
Genera of the Asian catfish families Sisoridae and Erethistidae
(Teleostei: Siluriformes). Zootaxa 1345:1-96. |
|
Family: Erithistidae
|
| Click
on thumbnails |
 Erethistes
jerdoni
|
 Erethistes
jerdoni
Dorsal view showing the long pectorals
|
 Erethistes
jerdoni
Pair-female at bottom
|
 Erethistes
jerdoni
Youngsters
|
 Erethistes
jerdoni
Albino
|
 Erethistes
jerdoni
Albino
|
 Erethistes
jerdoni
Albino
|
 Erethistes
jerdoni
Albino
|
 Erethistes
jerdoni
|
 Erethistes
jerdoni
|
 Erethistes
jerdoni
|
 Erethistes
jerdoni
|
|
