Ecsenius paroculus Springer, 1988
Spottedback coralblenny

Family:  Blenniidae (Combtooth blennies), subfamily: Salariinae
Max. size:  4 cm SL (male/unsexed)
Environment:  reef-associated; marine; depth range 3 - 10 m
Distribution:  Western Pacific: west coast of Thailand, Malacca Strait, Mentawai [= Mentawei] Islands (off Sumatra), Seribu Islands and Bawean Island, off northwestern and north-central Java, respectively.
Diagnosis:  Dorsal spines (total): 12-12; Dorsal soft rays (total): 12-14; Anal spines: 2-2; Anal soft rays: 14-16. Description: Dorsal fin XII.13-15, with deep notch between spinous and ray portions; anal fin II,14-16 (usually 15); pectoral rays 11-14 (11 and 14 from few specimens but only unilaterally; usually 13); pelvic fin I, 3; caudal-fin segmented rays 13. Body depth at anal-fin origin 4.7-5.7 in SL. Vertebrae 10 + 20-22; incisors and anterior canine teeth look very similar, 47-58; posterior canines 1 on each side. Lateral line without pores, ends below 10th dorsal spine 10 to 1st segmented ray. Anterior nostril with cirrus present only on posterior rim. Overall olive brown, nape with transverse pair of dark spots, body with series of 7-11 blackish ocelli (in pairs with distinct margin), and scattered smaller white spots streaks; caudal peduncle with series of squarish spots. Eyes brown but bright white on lower portion, and with narrow yellow ring around the pupil and yellow streaks on iris. Dark stripe from eyes to posterior edge of operculum. Operculum and lower cheek margin black. Spinous-dorsal fin with suprabasal stripe, fine and dusky. Venter sprinkled with pigments in mature males only, otherwise unpigmented (Ref. 5296, 90102).
Biology:  Adults occur in coastal reefs (Ref. 90102). 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). Minimum depth from Ref. 58018.
IUCN Red List Status: Least Concern (LC); Date assessed: 25 March 2009 Ref. (130435)
Threat to humans:  harmless


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