Omobranchus smithi (Rao 1974)

Oviparous, distinct pairing (Ref. 205).

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).

Omobranchus meniscus

DESCRIPTION (where variation is indicated, the holotype is flagged with an asterisk).—Dorsal fin XII, 19; anal fin II, 21–22*; both anal-fin spines of male discernible externally; segmented caudal-fin rays 13; dorsal + ventral procurrent caudal-fin rays 9–10*; vertebrae 10 + 26–27*; epipleural ribs 11–12*; prenasal pores present; interorbital pores 3; circumorbital pores 8; lateral-line tubes absent; gill opening extending ventrally to opposite 3rd pectoral-fin ray; lower-lip flap present; circumorbital bones 5; male with fleshy, bladelike crest on top of head (2.8 percent SL), female lacks crest.

Teeth (Figure 43): The 60.1 mm SL male holotype has 20 premaxillary and 22 dentary incisoriform teeth. The 54.8 mm SL female paratype has 21 premaxillary and 23 dentary incisoriform teeth. Both specimens have dorsal and ventral posterior caniniform teeth.

COLOR PATTERN (specimens faded).—Male: Head: Moderately narrow, dusky band extending from anteroventral margin of orbit at least to corner of mouth. Large, intensely dark, anteriorly opening, crescentic mark curving dorsally from dorsoposterior margin of orbit, almost reaching to base of fleshy head crest. Snout dark dusky with sensory pores and nostrils pale ringed. Dark dusky vermiculations present on crest. Dark, oval blotch present laterally on nape just anterior to dorsal-fin origin, narrowly joined to similar blotch on opposite side at dorsal midline; 3 to 5 small, intensely dark spots present on blotch in dorsoposteriorly directed line.

Trunk: Several faint, moderately broad, dusky bands apparently present on side, extending approximately from dorsal to ventral body contours. Indication of broad, dark dusky stripe just below dorsal body contour extending from just behind head to caudal peduncle (possibly artifact of preservation); longitudinal series of dusky blotches or dusky stripe apparently present at dorsal-fin base. Number of very small, intensely dark spots scattered along body, probably restricted somewhat to body bands. Connected horizontal line of very narrow, dark dashes present posteriorly on lateral midline of body.

Pectoral Fin: Pale, transparent.

Pelvic Fin: Pale.

Dorsal Fin: Dusky anteriorly, pale to transparent posteriorly. Anterior half of fin with several darkish streaks, apparently representing dorsoposteriorly angled dark lines. Posterior half of fin with streaks very faint, fin transparent distally.

Anal Fin: Pale with dark membranes between tips of rays.

Caudal Fin: Pale. Midportion of base dusky, becoming faint distally.

Female: Apparently similar to male, appears to have slightly less developed body bands and less distinct dorsal-fin markings (crest absent).

COMPARISONS.—Omobranchus meniscus is easily distinguishable from all other species of Omobranchus by the dark, crescentic marking extending dorsally from the posterior margin of the orbit. It is otherwise distinguishable only on the basis of a complex of characters. It appears probable that when more specimens of O. meniscus are available, the species will exhibit a low number of meristic elements compared with those of the other species in the genus.

There are eight species of Omobranchus. in which the males may have a fleshy, bladelike crest on top of the head. Of these, all but O. meniscus have the gill opening predominantly restricted to the area dorsal to the level of the dorsalmost pectoral-fin ray. Only one of these species with a restricted gill opening, O. fasciolatus, has the gill opening extending ventrally as far as the level of the second pectoral-fin ray (and this condition was found in only one of 54 specimens), whereas both specimens of O. meniscus have the gill opening extending ventrally to opposite the third pectoral-fin ray.

Of the eight crested species, only O. anolius, O. aurosplendidus, and O. meniscus commonly lack bipored lateral-line tubes.

The two specimens of O. meniscus have nine or ten total procurrent caudal-fin rays. Among the other crested species only O. aurosplendidus has as few as ten total procurrent caudal-fin rays.

Possibly the head of O. meniscus is proportionately larger than that of most of the other Omobranchus species. The head length of the two specimens of O. meniscus, 54.8 and 60.1 mm SL, are 24.2 and 23.6% SL, respectively. The head length of O. zebra is proportionately about the same as that of O. meniscus at similar sizes (the largest specimen of O. zebra available is only 56.5 mm SL). Omobranchus aurosplendidus may also have a head length proportionately the same as that of O. meniscus, but this is not certain as there are no specimens available less than 75 mm SL. Where specimens of comparable size to those of O. meniscus are available, the head length is about 17–22% SL in the other Omobranchus species.

ETYMOLOGY.—The specific epithet meniscus comes from Latin, meaning “crescent,” and refers to the dark, crescent-shaped mark on the head that distinguishes the species. Meniscus is here used as a noun in apposition.

HOLOTYPE.—USNM 119685, male, 60.1 mm SL, mouth of river at Chantabun, Thailand. Collected by Mai Mah, 10 April 1933; habitat unknown.

PARATYPE.—USNM 211153, female, 54.8 mm SL, same data as holotype.

Omobranchus smithi és una espècie de peix de la família dels blènnids i de l'ordre dels perciformes.

Omobranchus smithi is a species of combtooth blenny found in the western Pacific and Indian ocean.

Omobranchus smithi es una especie de pez de la familia Blenniidae en el orden de los Perciformes.

(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});

Omobranchus smithi Omobranchus generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Blenniidae familian.