Indonesian Speckled Catshark

description

H. maculosus n. sp. H. sellus n. sp. H. buergeri H. boesemani Holotype Paratypes Holotype Paratypes (n = 3) Holotype MZB (n = 7) CSIRO (n = 7) USNM 15499 Min Max H 994 – 01 Min Max Min Max 205136 Caudal peduncle height 2.7 2.7 3.2 3.0 2.5 2.9 2.6 3.3 2.9 Head width 11.6 11.1 12.2 12.0 10.5 11.8 10.9 12.3 13.6 Trunk width 9.9 9.7 12.8 11.4 9.7 11.4 9.6 11.3 12.0 Caudal peduncle width 2.2 2.5 3.3 2.3 2.4 2.7 2.2 2.9 1.8 Pectoral fin - length 10.5 10.4 12.0 10.3 9.9 11.3 9.5 10.3 10.9 Pectoral fin - anterior margin length 10.8 10.8 11.7 9.7 9.6 10.7 9.6 10.6 11.5 Pectoral fin - base length 5.5 5.2 6.0 4.8 4.9 5.6 5.4 5.6 5.6 Pectoral fin - height 8.1 8.0 8.6 8.1 7.7 9.2 8.2 8.9 9.6 Pectoral fin - inner margin length 5.8 4.9 5.9 6.4 5.6 6.5 4.5 5.2 6.0 Pectoral fin - posterior margin length 7.2 5.8 7.6 7.1 5.9 7.9 7.0 7.7 8.4 Pelvic fin - length 12.0 11.9 13.5 11.3 11.2 13.4 11.9 13.3 12.4 Pelvic fin - anterior margin length 6.4 6.3 7.1 5.7 5.5 7.0 5.7 6.6 6.5 Pelvic fin - base length 6.9 6.7 8.8 6.9 6.7 7.8 7.4 9.2 7.9 Pelvic fin - height 5.0 4.4 5.4 4.7 4.1 5.2 4.1 4.6 3.6 Pelvic fin - inner margin length 5.5 4.5 6.0 5.0 4.0 5.3 4.1 4.4 4.5 Pelvic fin - posterior margin length 6.4 6.

Halaelurus maculosus n. sp. and H. sellus n. sp., two new species of catshark (Carcharhiniformes: Scyliorhinidae) from the Indo – West Pacific

distribution

Distribution. Known from the southern coast of Java, and off the islands of Bali and Lombok in eastern Indonesia, and has also been recorded from several landing sites in the Philippines (see Fig. 9). Habitat. Caught occasionally by demersal fisheries, but no depth distribution information available.

Halaelurus maculosus n. sp. and H. sellus n. sp., two new species of catshark (Carcharhiniformes: Scyliorhinidae) from the Indo – West Pacific

etymology

Etymology. Derived from the Latin maculosus (speckled) in allusion to the speckling of small dark spots over the dorsal and lateral surfaces of the body. Comparisons. Halaelurus maculosus was first recognised from the Philippines as being similar but possible distinct from H. buergeri (Compagno et al., 2005). However, it differs from H. buergeri in having a colour pattern of numerous, small to moderately large dark spots (usually much smaller than spiracle and covering the entire dorsal and lateral surfaces of the body), rather than fewer, larger dark spots (usually larger than spiracle and arranged along the saddle-marking borders but which are absent from the paler areas between saddles) (see Figs 1 and 11). Halaelurus maculosus also differs from H. buergeri in a number of morphological characters: more posteriorly positioned first dorsal fin (predorsal length 41.6 – 42.8 vs. 39.3 – 41.0 % TL), dorsal fins closer together (interdorsal space 13.1 – 15.0 vs. 16.0 – 17.1 % TL), slightly longer head (head length 17.8 – 19.4 vs. 16.5 – 17.8 % TL), shorter caudal peduncle (dorsal – caudal space 7.7 – 8.9 vs. 9.2 – 9.9 % TL, anal – caudal space 9.0 – 10.9 vs. 11.3 – 12.8 % TL), longer p

Halaelurus maculosus n. sp. and H. sellus n. sp., two new species of catshark (Carcharhiniformes: Scyliorhinidae) from the Indo – West Pacific

materials_examined

Holotype. MZB 15499, adult male 436 mm TL, Kedonganan fish market, Bali, Indonesia, 0 8 ° 45 ′ S, 115 ° 10 ′ E, July 2002. Paratypes. 7 specimens: CSIRO H 5889 – 09, adult male 457 mm TL, CSIRO H 5889 – 16, adult male 439 mm TL, CSIRO H 5889 – 17, adult male 444 mm TL, CSIRO H 5889 – 18, adult male 430 mm TL, CSIRO H 5890 – 01, immature male 315 mm TL, MZB 15550, adult male 421 mm TL, collected at same locality as holotype; CSIRO H 5858 – 01, female 426 mm TL, Cilacap landing site, Central Java, Indonesia, 0 7 ° 40 ′ S, 109 ° 0 0 ′ E, 2001; CSIRO H 6497 – 02, 17 egg cases, Tanjung Luar landing site, Lombok, Indonesia, 08 ° 45 ' S, 116 ° 35 ' E, 2006. Other material. 14 specimens: CSIRO H 5889 – 14, adult male 434 mm TL, CSIRO H 5889 – 25, immature male 344 mm TL, CSIRO H 5890 – 02, adolescent male, 360 mm TL, MZB 15446, adult male 426 mm TL, MZB 15448, adult male 411 mm TL, MZB 15449, adolescent male 413 mm TL, MZB 15459, adult male 430 mm TL, MZB 15462, adult male 433 mm TL, MZB 15464, adult male 444 mm TL, MZB 15465, adult male 400 mm TL, MZB 15466, female 453 mm TL, MZB 15467, adult male 412 mm TL, MZB 15490, adult male 441 mm TL, collected at same locality as holotype; JPAG 114

Halaelurus maculosus n. sp. and H. sellus n. sp., two new species of catshark (Carcharhiniformes: Scyliorhinidae) from the Indo – West Pacific