Morphology Data of Plectranthias alcocki
Identification keys
Abnormalities
Main Ref. Bineesh, K.K., K.V. Akhilesh, A. Gopalakrishnan and J.K. Jena, 2014
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 elongated
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following set of characters: D X,15, fourth dorsal spine longest, 2.8 (2.6) in HL; A III,7; pectoral-fin rays 14; pelvic-fin rays I,5; complete lateral-line with 28 pored scales; scales above lateral line to origin of dorsal fin 1; scales dorsally on head extending to posterior nostrils; maxilla or chin without scales; gill-rakers 5 + 11 (2 + 7 developed); circumpeduncular scales 10; body depth of holotype 34.4% SL, head length 46% SL, orbit diameter 8.6 in SL, dorsal fin slightly notched and continuous, with longest dorsal soft ray (second) 2.4 in HL, first anal-fin spine 4.9 in HL, second anal spine 2.2 in HL; dorsal fin with a black blotch at base of 4th-8th spines, one at base of the last three spines, and two at base of soft portion of fin, the dark pigment extending onto adjacent body; margin of preopercle finely serrate, 33 serrae, and ventral edge without antrorse spines (Ref. 95532).

Ease of Identification

Meristic characteristics of Plectranthias alcocki

Lateral Lines 1 Interrupted: No
Scales on lateral line
Pored lateral line scales 28 - 28
Scales in lateral series
Scale rows above lateral line 1 - 1
Scale rows below lateral line
Scales around caudal peduncle 10 - 10
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 11 - 11
on upper limb 5 - 5
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 10 - 10
Soft-rays total 15 - 15
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total 3 - 3
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   14 - 14
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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