Morphology Data of Eudontomyzon mariae
Identification keys
Abnormalities
Main Ref. Kottelat, M. and J. Freyhof, 2007
Appearance refers to Male; Female
Bones in OsteoBase

Sex attributes

Specialized organs no special organs
Different appearance males alike females
Different colors males alike females
Remarks

Descriptive characteristics of juvenile and adult

Striking features striking type of mouth
Body shape lateral eel-like
Cross section circular
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout sucker-like
Position of mouth sub-terminal/inferior
Type of scales
Diagnosis

Adults: 12.0-22.2 cm TL. Body wet weight of 37 individuals 13.1-19.5 cm TL, 3.61-12.69 g. Body proportions, as percentage of TL (based on 39 specimens measuring 12.3-19.5 cm TL): prebranchial length, 6.9-12.1; branchial length, 8.5-12.3; trunk length, 44.9-54.4; tail length, 24.3-31.3; cloacal slit length, 0.4-2.2; eye length, 0.7-2.1; disc length, 2.2-5.8; prenostril length, 2.5-6.5; snout length, 2.7-7.6; postocular length, 2.4-3.7. The urogenital papilla length, as a percentage of branchial length, in eight spawning males measuring 14.35-18.4 cm TL, 25.0-38.6. Trunk myomeres, 60-73. Dentition: Most labial teeth are villiform; supraoral lamina, usually only 2 unicuspid teeth, but in less than 10% of cases, 1-3 small unicuspid teeth may also be found on the bridge; infraoral lamina, 5-10 usually unicuspid teeth, but 1-2 lateralmost teeth may be bicuspid; usually 3 endolaterals on each side (83%), but 4 (11%), 1 (4%), and 2 (2%) also found; endolateral formula, typically 1-2-2 (26%), 1-2-1 (22%), 2-2-1 (13%), 2-2-2 (11%), but also 1-1-1, 2-2-3, 1-1-2-2 (each 6%), 2, 1-1-2-1 (each 4%), 1-2, 1-2-2-2 (each 2%) - Naseka et al. (2009) reported the following additional formulae from the syntypic series, including a count of 5 endolaterals: 1-1-2, 1-3-1, 2-1-1, 2-3-2, 1-2-2-1, 2-1-2-2, 1-1-2-1-1; 2-5 rows of anterials; first row of anterials, 5-10 unicuspid teeth, exceptionally, one lateralmost tooth may be bicuspid; 1-4 rows of exolaterals; rows of posterials, 0-3 (absent in 10% of individuals only); first row of posterials, either complete (continuous) with 12-20 unicuspid teeth (62% of individuals) or incomplete (discontinuous) with 1-12 unicuspid teeth (38% of individuals) or entirely absent (very rarely) - Naseka et al. (2009) reported the following additional counts from the syntypic series: complete row with 10 unicuspid and 1 bicuspid teeth; incomplete row with 13-17 unicuspid teeth and with 4 unicuspid and one bicuspid teeth; transverse lingual lamina, 3-7 unicuspid teeth, the median one enlarged (in 79% of individuals, the median cusp is both higher and wider, while in 21% of individuals it is wider, but not noticeably higher, than the flanking cusps); longitudinal lingual laminae each with 5-11 unicuspid teeth. Velar tentacles, 7-12, with tubercles. No dark blotch near the apex of the second dorsal fin. Lateral line neuromasts unpigmented or darkly pigmented, at least on the ventral aspect. Extent of caudal fin pigmentation (- = absence to trace; + = 1% to under 25%; ++ = 25% to under 75%; +++ = 75% or more): - (7%), + (3%), ++ (13%), +++ (77%). Caudal fin shape, spade-like (97% of individuals), rarely rounded. Oral fimbriae, 88-98 (Ref. 89241). With 62-73 trunk myomeres. The caudal fin is dark grey to black (Ref. 59043).

Ease of Identification likely to be confused with closely related species.

Meristic characteristics of Eudontomyzon mariae

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 2
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 0 - 0
Soft-rays total 0 - 0
Adipose fin absent

Caudal fin

Attributes pointed; more or less normal

Anal fin(s)

Fins number
Spines total 0 - 0
Soft-rays total 0 - 0

Paired fins

Pectoral Attributes  absent
Spines     
Soft-rays   
Pelvics Attributes  suppressed/absent
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Froese, Rainer
Modified by Hilomen, Teresa
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