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Typhleotris pauliani
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drawing shows typical species in Milyeringidae.
Teleostei (teleosts) >
Gobiiformes
(Gobies) >
Milyeringidae
(Blind cave gudgeons)
Etymology:
Typhleotris:
Greek, typhlos = blind + the name of a Nile fish, eleotris (Ref.
45335
)
;
pauliani:
Named in honor of the prominent French entomologist and former deputy director of the Institut de Recherche Scientifique de Madagascar, Renaud Paulian, who collected the specimens on which the original description is based end who did much seminal work on western Indian Ocean biogeography (Ref.
93144
)
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
Africa: Madagascar, caves and sinkholes to the north of the Onilahy River drainage (Ref.
6802
,
93144
). Probably it is also collected from caves inland and just south of Andavadoaka (Ref.
93144
).
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 7.1 cm SL male/unsexed; (Ref.
93144
)
Short description
Morphology
|
Morphometrics
Dorsal
spines
(total): 6;
Dorsal
soft rays
(total): 7-8;
Anal
spines
: 1;
Anal
soft rays
: 7 - 8;
Vertebrae
: 24 - 25. Diagnosis: It is distinguished from congeners by the absence of scales on the head, less the operculum, the presence of single and feeble leading spines in both the second dorsal and anal fins, a pelvic formula of I,5, the presence of an enlarged, bony operculum, and an overall more robust and heavier body, particularly in adults (Ref.
93144
).
Typhleotris pauliani
is further distinguished from
T. mararybe
by the absence of pigment on the body and a longer prepelvic length (34.1-40.4% of standard length vs. 33.0-33.9% of standard length), and from
T. madagascariensis
by the absence of ctenoid scales on the flank and dorsum, except for a few weak ctenoid scales midflank in some individuals, more or less along the lateral midline (Ref.
93144
).
It is restricted to subterranean habitats in coastal regions to the south of Morombe in the vicinity of Andalambezo (Ref.
93144
). A cave-dwelling species (Ref.
6802
). Feeds on guano and small aquatic insects (Ref.
91201
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Maugé, L.A.
, 1986. Eleotridae. p. 389-398. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MARC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref.
6802
)
IUCN Red List Status (Ref.
130435
)
Critically Endangered (CR)
(B1ab(iii)); Date assessed:
14 May 2016
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.3 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
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Page last modified by :
mrius-barile
- 20 July 2016
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