Apterichtus australis McCosker & Randall 2005
Creators
Description
Apterichtus australis McCosker & Randall 2005
Table 1
Apterichtus australis McCosker & Randall 2005:2, Fig. 1 a (type locality Easter Island, holotype BPBM 12306). Apterichtus flavicaudus (non Snyder 1904): McCosker & Stewart 2006:92 (New Zealand specimen).
Diagnosis. An elongate species with: tail 1.8–2.2, head 18–20, and body depth 67–83 in total length; snout sharply pointed in lateral view, dorsal profile ca. 30o above lower jaw; 3 preopercular pores and 3 pores in supratemporal canal; teeth conical, uniserial on jaws and vomer; 5–10 vomerine teeth; body mostly pale in preservative, creamy dorsally and reddish-brown ventrally with light and dark head markings in life; and MVF 82–164, total vertebrae 162–167 (n=14).
Size. The largest specimen examined is 570 mm, a female.
Distribution. Known from Japan and the south Pacific island groups of Rapa, Pitcairn, Easter, New Zealand, and possibly Lord Howe. It was captured over sand with associated rock and coral reef bottoms using ichthyocides and dredges between 12–100 m depth.
Remarks. This species is most similar to to A. flavicaudus (Snyder 1904) and may ultimately be determined to be conspecific. At this time we are unable to synonymize them with confidence and we will continue to recognize them as valid.
McCosker and Stewart (2006) reported upon a large female specimen collected from the Northland, New Zealand, as Apterichtus flavicaudus. The specimen, however, has 8 vomerine teeth. Additional information that we have accumulated concerning the vomerine dentition of Apterichtus would result in its reidentification as A. australis.
Doubilet (1990:26) published a superb color photograph of the head and throat (the cephalic pores are obvious) of an individual protruding from the sand bottom off Sagami Bay, Japan. It was identified as Apterichtus flavicaudus, however we feel that it is an A. australis. Hatooka (1995) recorded a specimen as A. flavicaudus from Sagami Bay which Hibino reidentified as A. australis; it has 164 total vertebrae, 84 preanal pores, and five vomerine teeth. Numerous subsequent photographs of Apterichtus were subsequently taken by divers between 12 and 28 m depth at Suruga and Sagami Bay (http://fishpix.kahaku.go.jp/fishimage-e/). We feel that those underwater photographs taken of Apterichtus are identifiable as A. australis.
Material examined. 15 specimens, 137–570 mm TL, including the holotype (BPBM 12306, 395 mm TL). In addition to the specimens listed in McCosker and Randall (2005:2) is NMNZ P 35151, 570 mm (580 mm prepreservation), from New Zealand, Spirits Bay, Northland (34°23.4’S, 172°48.1’E), station depth and date not recorded.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Ophichthidae
- Genus
- Apterichtus
- Kingdom
- Animalia
- Order
- Anguilliformes
- Phylum
- Chordata
- Scientific name authorship
- McCosker & Randall
- Species
- australis
- Taxon rank
- species
- Taxonomic concept label
- Apterichtus australis McCosker, 2005 sec. Hibino, 2015
References
- McCosker, J. E. & Randall, J. E. (2005) Notes on the snake eels of the genera Apterichtus and Ichthyapus (Anguilliformes: Ophichthidae) of the central and south Pacific, with the description of a new species. Zootaxa, 800, 1 - 11.
- Snyder, J. O. (1904) A catalogue of the shore fishes collected by the steamer " Albatross " about the Hawaiian Islands in 1902. Bulletin of the United States Fish Commission, 22, 513 - 538.
- McCosker, J. E. & Stewart, A. L. (2006) Additions to the New Zealand eel fauna with the description of a new moray, Anarchias supremus (Teleostei: Muraenidae), and comments on the identity of Gymnothorax griffini Whitley and Phillips. Journal of the Royal Society of New Zealand, 36, 83 - 95. http: // dx. doi. org / 10.1080 / 03014223.2006.9517802
- Doubilet, D. (1990) Dreams and nightmares in Suruga's wire coral forest. National Geographic, 178, 20 - 39.
- Hatooka, K. (1995) First record of an ophichthid eel Apterichtus flavicaudus (Snyder) from Izu Oceanic Park. I. O. P. Diving News, 6, 2 - 4.