Ecsenius aroni Springer, 1971
Aron's blenny
Ecsenius aroni
photo by Randall, J.E.

Family:  Blenniidae (Combtooth blennies), subfamily: Salariinae
Max. size:  5.5 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 10 - 37 m
Distribution:  Western Indian Ocean: Red Sea and Gulf of Aqaba; south to Djetta, Saudi Arabia and Towartit Reef, Sudan.
Diagnosis:  Dorsal spines (total): 12-13; Dorsal soft rays (total): 16-18; Anal spines: 2-2; Anal soft rays: 19-20; Vertebrae: 34-37. Dorsal fin XII or XIII (rarely XII),16-18 (rarely 18), deeply notched between spinous and segmented ray sides. Anal fin II,19 or 20. Pectoral fin 13-15 (typically 14). Segmented caudal-fin rays 13. Vertebrae 10 or 11 (rarely 10) + 23-26 (typically 24 or 25) = 34-37 (rarely 34). Dentary incisor teeth which includes anterior canine teeth very similar in appearance with incisors 46-57; posterior dentary canines 0 or 1 (rarely 0) on each side. Lateral line without pairs of pores, terminating posteriorly at a point between verticals from dorsal-fin spines 8 and 10. With cirrus on posterior rim of anterior nostril; absent on anterior rim.
Biology:  Adults occur in coral reefs. Secretive (Ref. 9710). Oviparous. Eggs are demersal and adhesive (Ref. 205), and are attached to the substrate via a filamentous, adhesive pad or pedestal (Ref. 94114). Larvae are planktonic, often found in shallow, coastal waters (Ref. 94114).
IUCN Red List Status: Least Concern (LC); Date assessed: 24 March 2009 Ref. (123251)
Threat to humans:  harmless
Country info:  Museum: Towartit Reef, BPBM 27436 (Ref. 5296).

Entered by: Garilao, Cristina V. - 19.12.96
Modified by: Luna, Susan M. - 03.02.14

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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