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Akysis
longifilis Ng, 2006
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| Image
contributors to this species: |
| Adrian
Taylor
(5) Daniel
Blom (2) Steve
Grant (1) Heok Hee Ng (3) Johnny
Jensen's Photographic Library (1) |
| ScotCat
Sources: |
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| Other
Sources: |
 
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| Relevant
Information: |
Vertebrae: 33 - 35. Akysis
longifilis is a member of the A. variegatus species
group and can be distinguished from congeners in the group (except
for A. brachybarbatus, A. fuliginatus, A. pictus, A. prashadi,
A. variegatus, A. varius and A. vespa) in having a
smooth (vs. serrated) posterior edge of the pectoral spine. It differs
from A. brachybarbatus in having a narrower head (21.1-24.7%
SL vs. 25.5-28.0) and a more slender caudal peduncle (5.6-7.2% SL
vs. 7.9-8.1), and from A. fuliginatus in having a longer
adipose-fin base (25.7-31.1% SL vs. 15.1-19.5), more slender body
(9.7-13.6% SL vs. 14.1-16.6) and caudal peduncle (5.6-7.2% SL vs.
10.1-10.5), longer nasal and maxillary barbels (nasal barbel length
67.4-96.4% HL vs. 52.1-58.2; maxillary barbel length 123.2-159.6%
HL vs.100.0-109.1), presence of light saddle-shaped spots on the
body (vs. uniformly dark body), and a forked (vs. truncate) caudal
fin. Akysis longifilis can be distinguished from A.
pictus in having a more slender caudal peduncle (5.6-7.2% SL
vs. 7.7-8.5), longer adipose-fin base (25.7-31.1% SL vs. 22.0-23.6),
and longer nasal and maxillary barbels (nasal barbel length 67.4-96.4%
HL vs. 54.3-56.7; maxillary barbel length 123.2-159.6% HL vs. 95.7-128.8),
and from A. prashadi in having a longer caudal peduncle (18.3-23.2%
SL vs. 16.5-18.4). It differs from A. variegatus in having
longer nasal and maxillary barbels (nasal barbel length 67.4-96.4%
HL vs. 33.3-62.3; maxillary barbel length 123.2-159.6% HL vs. 78.3-114.8),
from A. varius in having a forked (vs. truncate) caudal
fin, and from A. vespa in having a longer adipose-fin base
(25.7-31.1% SL vs. 17.6-21.1), more slender caudal peduncle (5.6-7.2%
SL vs. 7.6-8.5), longer nasal and maxillary barbels (nasal barbel
length 67.4-96.4% HL vs. 54.5-72.5; maxillary barbel length 123.2-159.6%
HL vs. 89.0-98.2), and more vertebrae (33-35 vs. 31-32). Aquarium
Care: Akysis are easy to keep for any decent fishkeeper.
You can keep in small tanks (30cm wide x 20cm high x 30cm deep)
with a sand bottom, small pipes, and caves. They will either bury
themselves in the sand or hide in caves and pipes. They are not
usually active during the day but will spring to action and eat
voraciously and crazily if food is put in the tank. Diet:
They will eat bloodworm, chopped earthworms, whiteworm, daphnia,
and sinking pellets (although they seem to prefer live or frozen
food). |
| Common
Name: |
None |
| Synonyms: |
None |
| Family: |
Akysidaemblycipitidae |
| Distribution: |
Asia:
Sittang River drainage, southern Myanmar (Burma) |
| Size:
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5.5cm
(2¼ins) |
| Temp: |
18-23°C
(63-73°F) |
| p.H. |
6.7-7.2. |
| Reference: |
Ng, H. H., 2006
Akysis longifilis, a new species of catfish (Teleostei: Akysidae)
from Myanmar. Zootaxa 1150: 19–30.
Scotcat Factsheet No. 138. Dec. 2007. |
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