Caesio xanthonota Bleeker, 1853 Yellowback

Mohanty, Swarup Ranjan, Patnaik, Lipika & Mohapatra, Anil, 2021, Short Communication Caesio xanthonota Bleeker, 1853, a new record of fusilier (Perciformes: Caesionidae) from Odisha coast, India, Records of the Zoological Survey of India 121 (2), pp. 311-313 : 312

Caesio xanthonota Bleeker, 1853 Yellowback fusilier ( Figure 1 )

1845. Caesio xanthonotus Bleeker , Nat . Tijdschr. Ned.-Indie., 4: 466 (type locality, Indonesia).

1988. Caesio xanthonota : Carpenter, FAO Fish. Synop., 8 (125): 45, pI. 1, fig. 43a & b.

Materials examined: EBRC /ZSI/ F 11850, 1 ex., 168 mm SL, Paradip fish landing centre, Jagatsinghpur , Odisha (20°17’25.90”N; 86°42’26.73”E), 11 th March 2020, Coll. Swarup Ranjan Mohanty.

Diagnostic characters: The distinguishing character which makes the genus different from the other genus in the family Caesionidae is the presence of a single postmaxillary process and blunt posterior end of maxilla. The species is characterized by its compressed, fairly deep and acuminate body. The body depth 2.9 in SL. Predorsal length 2.6; preanal length 1.6 and head length 3.2 in SL. Caudal peduncle length 10.8 and depth 8.0 in SL. Mouth small, protractible and having small conical teeth. Size of the eye little greater than the snout, eye and snout 10.8 and 12.0 in SL, respectively. Longitudinal axis through tip of snout to middle of caudal fin passing through centre of eye. Eye 3.4 and snout 3.8 in HL.

Caesio xanthonota Bleeker, 1853

Total length 230 mm Standard length 168 mm

Morphometric Characters

IN SL

Predorsal length 2.6 Preanal length 1.6

Head length 3.2

Eye diameter 10.8

Snout length 12.0 Caudal peduncle length 10.8 Caudal peduncle depth 8.0

Body depth 2.9

IN HL Eye diameter 3.4 Interorbital length 3.0

Snout length 3.8

Upper Jaw length 5.9

Lower Jaw length 5.3

Lateral line scales 56; scales below lateral line 18; scales above lateral line 10; 5 scales rows on chick; predorsal scales 22. Spinous portion of dorsal fin scales oblique and anal fins scaled. Dorsal fin with 10 spines and 15 soft rays; anal fin with 3 spines and 12 soft rays; pectoral fin with 20 rays; pelvic fin with 1 spine and 5 rays ( Table 1).

Colour: Body colour yellowish dorsally, bluish laterally and the lower third of the body is whitish. Dorsal fin yellow; caudal fin bright yellow; anal, pelvic and pectoral fin white, but the upper base of the pectoral fin black ( Figure 1 )

Habitat: This species found in coastal areas and deep lagoons, especially around the coral reef areas ( Carpenter, 1988).

Figures

Figure 1. Caesio xanthonota Bleeker, 1852, Paradip Odisha, India.