Chrysichthys
polli Risch, 1987
|
| |
| Image
contributors to this species: |
| Jeffrey Lawton
(6) |
| ScotCat
Sources: |
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| Other
Sources: |
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| |
| Relevant
Information: |
Dorsal spines (total):
1; Dorsal soft rays (total): 6 - 6; Anal soft rays: 12 - 14. Body
moderately elongate. A deep head, its height more than 66% of
the head length. An obtusely pointed snout, slightly rounded.
Eye-diameter longer than the length of the nasal barbel. Nasal
barbel short, hardly reaching the anterior edge of the orbit;
maxillary barbel moderate reaching the tip of the humeral spine;
outer mandibulary barbel moderate, up to the posterior end of
the operculum; inner mandibulary barbel reaching the end of the
orbit; the two pairs of slender mandibulary barbels are distantly
set and in between small papillae are found. A low number, 13-14,
of slender gill rakers. Humeral spine well developed, but not
reaching beyond the level of the dorsal spin. Dorsal spine short,
strongly serrated on the posterior side; pectoral spine well developed,
strongly serrated on the inner side. Dorsal fin short, much shorter
than the head length; pectoral fin short, not reaching the base
of the ventral fin; anal fin moderate, its base longer than or
equal to the base of the adipose fin. Adipose fin small, the length
of its base shorter than the length of the base of the dorsal
fin). Colour: Preserved specimens are dark brown
above the lateral line and lighter beneath; sometimes there is
a black band behind the operculum. The dorsal and caudal fin may
show a tiny black margin. This is stated as a smalll Chrysichthys
species which may be is imported as C.longipinnis
or C. sp. furcatus in the trade. The first three
specimens in the photo's are just under 2ins (5cm) in size and
the last three are 12 months later. |
| Common
Name: |
None |
| Synonyms: |
None |
| Family: |
Claroteidae blycipitidae |
| Distribution: |
Africa:
lower Congo River basin and Ubangi drainage
(middle Congo River basin). Type locality: Yelelola
(falls). Lower Zaire (5º43'S, 13º34'E). |
| Size:
|
14cm.
(5½ins) |
| Temp: |
22-28°C
(71-83°F) |
| p.H. |
6.5-7.2. |
| Reference: |
Ferraris, C.J.
Jr., 2007. Checklist of catfishes, recent and fossil
(Osteichthyes: Siluriformes), and catalogue of siluriform primary
types. Zootaxa 1418:1-628.
Seegers, L. 2008 The catfishes of Africa. A handbook
for identification and maintenance. Aqualog Verlag A.C.S. GmbH,
Germany. 604 p.
Risch, L. 1987 Description of four new bagrid
catfishes from Africa (Siluriformes: Bagridae). Cybium 11(1):21-38.
Froese, R. and D. Pauly. Editors. 2009.FishBase.
World Wide Web electronic publication. www.fishbase.org, version
(02/2010). |
|
Family:
Claroteidae
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 Chrysichthys
polli
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 Chrysichthys
polli
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 Chrysichthys
polli
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 Chrysichthys
polli
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 Chrysichthys
polli
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 Chrysichthys
polli
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