Morphology Data of Pellonula vorax
Identification keys
Abnormalities
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
Remarks

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

Diagnosis: Body moderate or fairly deep, its depth 23-30% of standard length; 1 or more scutes beginning in front of base of first pectoral finray, with 11-16 pre-pelvic and 8-11 post-pelvic scutes, and a total of 20-25 scutes, first pre-pelvic scute always longer and better developed than following scutes lacking ascending arms; lower jaw slightly projecting, teeth at symphysis large in large specimens; pre-maxilla teeth well-developed, fairly straight and outward pointing, an indented toothless gap at centre of jaw; lower gillrakers 24-37, equal to or longer than corresponding gill filaments; silver stripe along flank (Ref. 188, 2244, 81269, 81631). It resembles Pellonula leonensis, which has small and inward-curving teeth and no pre-pectoral scutes (Ref. 188, 81269, 81631). The absence of large canine teeth in the upper jaw distinguishes it from Odaxothrissa (Ref. 188).

Description: Body moderate or fairly deep, its depth 23-30% of standard length (Ref. 188, 2244). Head length about 30% of standard length (Ref. 2244). Lower jaw projecting, with well-developed teeth, but no enlarged canine teeth; maxillary extending to below anterior border of eye or a little beyond (Ref. 1878, 2244, 3022). A group of teeth on each side of the palatinum; generally 3 rows of teeth on the tongue; conical teeth relatively well developed on the dentary and pre-maxillary; pre-maxillary teeth are directed towards the outside of the mouth; length of supra-maxillary and width of maxillary respectively 58.6-75.8% and 16.2-22.0% of maxillary length, whose base bears up to 40 small conical teeth (Ref. 2244). First gill arch with 34-54 gill rakers, of which 24-37 on the lower limb, generally longer than the corresponding filaments on the first gill arch (Ref. 2244, 2849, 81269, 81631). Dorsal fin with 15-19 rays, the first dorsal-fin ray slightly in front or behind the insertion of the pelvic fin; anal fin with 16-21 rays; pectoral fin with 12-18 rays; pelvic fin with 8 rays; length of pectoral fin generally more than half the pectoral-pelvic fin distance; caudal fin deeply forked, with pointed lobes (Ref. 1878, 2244, 2849, 81269, 81631). Cycloid scales; 38-48 scales on longitudinal series; 13-14 scales in transverse series (Ref. 1878, 2244, 3032). First pre-pelvic scute better developed and longer than following ones lacking ascending arms and located at isthmus in front of the base of the first pectoral fin ray; 10-16 pre-pelvic scutes and 8-11 post-pelvic scutes (Ref. 188, 2244, 2849, 81269, 81631). Vertebrae 42-43; with 21-26 abdominal vertebrae, 17-23 caudal vertebrae and 10-12 predorsal bones (Ref. 2244, 41578).

Colouration: Ground colour in 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 vorax

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 38 - 48
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 24 - 37
on upper limb
total 34 - 54
Vertebrae
preanal
total 42 - 43

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 15 - 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 - 21

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   12 - 18
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 )
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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