Morphology Data of Pellonula leonensis
Identification keys
Main Ref. Gourène, G. and G.G. Teugels, 1991
Appearance refers to
Bones in OsteoBase

Sex attributes

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

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral fusiform / normal
Cross section compressed
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales cycloid scales

Diagnosis: Pellonula leonensis is characterised by having the first prepelvic scute being as large as the following ones lacking ascending arms, located behind the pectoral-fin bases; also characteristic are the inward-curving premaxillary teeth (Ref. 2244, 2849, 81269, 81631). It resembles Pellonula vorax, which has larger and straighter teeth, often pointing forward, and scutes before pectoral fin bases (Ref. 188). Absence of large canine teeth in upper jaw distinguishes it from Odaxothrissa and also Cynothrissa; Microthrissa species are deep-bodied and have much more slender maxilla (Ref. 188).

Description: Body slender to moderately deep (Ref. 188, 2244). Lower jaw very slightly projecting, but not prominent; premaxillary teeth relatively fine, curved inward, only the tips usually apparent (Ref. 188, 81269, 81631). Dorsal fin with 13-19 rays, the first dorsal-fin ray slightly in front or behind the insertion of the pelvic fin; anal fin with 16-22 rays; pectoral fin with 11-16 rays; pelvic fin with 8 rays; length of pectoral fin about half of the pectoral-pelvic fin distance (Ref. 2244, 2849, 81269, 81631). Cycloid scales (Ref. 2244): 36-45 scales in longitudinal line; 8-15 prepelvic and 6-9 postpelvic mid-ventral scutes (Ref. 2244, 2849, 81269, 81631).

Colouration: Ground colour in alcohol-preserved specimens variable from yellow-brown to yellow-gray; operculum, ventral region and flanks usually lighter (Ref. 2244, 2849, 81269, 81631). Silver stripe along flank (Ref. 188).

Ease of Identification

Meristic characteristics of Pellonula leonensis

Lateral Lines 1 Interrupted: No
Scales on lateral line 36 - 45
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 20 - 35
on upper limb
total 29 - 52


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Spines total 0 - 0
Soft-rays total 13 - 19
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 16 - 22

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   11 - 16
Pelvics Attributes  more or less normal
Position    abdominal  beneath origin of D1
Spines     0
Soft-rays   8 - 8
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Luna, Susan M.
Modified by Boden, Gert
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17