Morphology Data of Danaphryne nigrifilis
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: narrow snout, width of ethmoid cartilage and vomer considerably less than the distance between anterolateral tips of the lateral ethmoids and frontals; frontals short, lying posterior to the ethmoid region, dorsal margin convex; frontals separated from prootics; presence of vomerine teeth; large and nearly circular nasal foramina; presence of pterosphenoid; anterior end of illicial trough wider and shallower than the posterior end; well developed sphenotic spines; symphysial cartilage of upper jaw longer than wide; lower jaw with well developed symphysial spine; hyomandibula with double head; well developed quadrate spine, longer than articular spine; deeply notched posterior margin of opercle; long and narrow subopercle, dorsal end long and slender, tapering to a point, ventral end nearly circular; absence of first pharyngobranchial; well developed second pharyngobranchial; second hypobranchial articulates directlywith second basibranchial; caudal fin rays without internal pigmentation; illicium longer than length of escal bulb; pterygiophore of illicium cylindrical throughout length, emerging on snout from between frontal bones, anterior end exposed, posterior end concealed beneath skin; well developed first ray of dorsal fin; dorsal fin rays 5-7; anal fin rays 4-5; short and broad pectoral fin lobe, shorter than longest rays of pectoral fin; pectoral fin rays 16-19; coracoid lacking posteroventral process; simple pelvic bones, expanded distally; skin smooth and naked, without dermal spinules; darkly pigmented skin of caudal peduncle extends well past base of caudal fin (Ref. 86949).

Ease of Identification

Meristic characteristics of Danaphryne nigrifilis

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 5 - 7
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 4 - 5

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   16 - 19
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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