Morphology Data of Neoceratias spinifer
Identification keys
Abnormalities
Main Ref. Pietsch, T.W., 2009
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Metamorphosed females distinguished by the following characteristics: lacks illicium and second cephalic spine, as well as cranial trough, within which pterygiophore of illicium lies in all other female ceratioids; broad and roughly rectangular shaped frontals; absence of metapterygoid and mesopterygoid; usually short and nearly straight preopercle; usually thick and well developed premaxillae and dentaries, with rounded edges; presence of a pair of prominent nasal papillae on snout; inner margin of jaws bearing single inner row of small immobile teeth; outer margin bears 2-3 series of long hinged teeth, each with tiny distal hook; dorsal and anal fins mounted on prominent bases; presence of supraethmoid; frontals without ventromedial extensions, meet on midline; presence of parietals; conical shaped sphenotics, without distal spine; presence of pterosphenoid; hyomandibula with single head; 2 hypohyals and 6 (2+4), rarely 5 (1+4), branchiostegal rays; bifuctaed and very much reduced opercle; reduced subopercle, long and narrow, as long as or slightly longer than lower fork of opercle, without posterior notch; ventral part without spine or projection on anterior margin; quadrate, articular, angular and preopercular spines absent; jaws subequal, lower extending anteriorly beyond upper; lower jaw lacking symphisial spine; absence postmaxillary process of premaxilla and anterior-maximandibular ligament; absence of first, second and fourth pharyngobranchial, third is well developed and toothed; single ossified hypobranchial; absence of ossified basibranchials; absence of epibranchial and ceratobranchial; epurals absent; deeply notched posterior margin of hypural plate; pterygiophore of illicium fully embedded in skin of head; esca absent; coracoid lacking posteroventral process; 3 pectoral radials; small and cylindrical pelvic bones, without distal expansion; dorsal fin rays 10-13; anal fin rays 10-13; pectoral fin rays 12-15; pelvic fins absent (Ref. 86949).

Ease of Identification

Meristic characteristics of Neoceratias spinifer

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
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 10 - 13
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 10 - 13

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   12 - 15
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Valdestamon, Roxanne Rei
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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