Morphology Data of Derilissus lombardii
Identification keys
Main Ref. Sparks, J.S. and D.F. Gruber, 2012
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

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

This species is distinguished from its congeners (and all other Bahamian gobiesocids) by the following characters: bright orangish-red coloration, yellow head, a prominent black oval patch on the caudal peduncle; pattern of papillae in disk region C; anteriorly, 2 distinct medial clusters, each comprising 8-9 closely arrayed papillae, and a single papilla anterior of each cluster, are present (vs. 2-5 papillae in each central cluster and 4-5 papillae arranged in a distinct crescent posterolaterally); posteriorly, papillae in disk region C are in a crescent pattern with a single additional papilla dorsal to its midpoint (vs. papillae in an inverted V-shaped pattern in D. nanus, D. altifrons, D. kremnobates; clumped in D. vittager); posterior margin of disk region B in the new species is strongly convex (vs. straight to weakly convex) with the rows of papillae arranged serially in a semi-circular pattern forming concentric crescents (vs. rows more or less straight); possess a total of 47 pectoral-fin rays (Ref. 91048).

Ease of Identification

Meristic characteristics of Derilissus lombardii

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
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 25 - 25


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total
Soft-rays total 8 - 8
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  
Soft-rays   23 - 24
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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