Careproctus vladibeckeri Andriashev & Stein 1998

Stein, David L., 2012, Snailfishes (Family Liparidae) of the Ross Sea, Antarctica, and Closely Adjacent Waters 3285, Zootaxa 3285, pp. 1-120 : 22-24

Careproctus vladibeckeri Andriashev & Stein 1998

Figs. 12, 13

Careproctus vladibeckeri Andriashev & Stein 1998:54 , Fig. 30; Andriashev 2003:191, Figs. 99, 100.

Holotype. LACM 10526–1 , male, 199 mm TL, 173 mm SL, 63°00' S, 49°20' W, Weddell Sea, USNS Eltanin, Stn. 529, 3–4 March 1963, 2653– 2941 m.

Material examined. Holotype. Paratypes, LACM 11460–1 , female, 267 mm TL, 228 mm SL, 74°07' S, 174°58' W , USNS Eltanin, Stn. 2110, 8–9 Feb. 1968, 2350 m ; LACM 11351–3 , female, TL unknown, 133 mm SL, 70°56' S, 172°04' W , USNS Eltanin, Stn. 1867, 13 Jan. 1967, 2273 m . Other material. ZISP 50830 (formerly LACM 10729–1 ), female, 104 mm TL, 91 mm SL, 58°54' S, 44°31' W, Scotia Sea, USNS Eltanin, Stn. 484, 16–17 Feb. 1963, 2088– 2271 m .

Expanded diagnosis. Counts. V 52 (10–11+41–42), D 46–48, A 40, C 10 (1+4/4+1), P 28–29 (21–22+7), radials 2 (1+0+0+1), pc 10–12, pores 2–6–7–1. Ratios. HL 28.3–29.6, HW ~21.5, sn 8.8–9.6, E 4.5–4.8, orbit 7.0– 8.4, go 6.4–6.8, md 14.2–17.5, disk 8.3–10.5, da 5.0–5.6, bd 21.5–24.6, preD ~32, preA 43.7–46.2, ma 26.6–29.2, aAf 13.9–15.0, UPL 17.3–19.2, LPL 16.8–20.4, pcl 7–8% SL. In % HL: E 15.6–17.0, orbit 27.1–31.3, go 20.0– 21.4, disk 28.6–36.6, preD 99.5–106.6, UPL 59–68.

Head large, its width and depth about equal. Mouth terminal, horizontal, teeth simple, their shape conical to canine, arranged in oblique curved rows in both jaws forming moderately wide bands, their width about 16% of their length; symphyseal gaps present in both jaws. Nostril porelike. Eye small, about 1/6 head. Symphyseal pore pair rather closely spaced, somewhat smaller than more posterior pores. Gill opening almost vertical, above and completely above or extending ventrally in front of 1–2 pectoral fin rays. Pectoral fin upper ray about even with lower margin of orbit, fin of 21–22+7 rays, notch moderately deep, its rays not clearly distinct in spacing from those of upper lobe. Lower lobe about as long as upper. Radials two, round, unnotched, opposite. Scapula and coracoid with long slender helves; coracoid basal notch absent. Disk flat, a little wider than long. Anus relatively distant from disk by about 2/3 disk length. Pleural ribs absent. Hypural incompletely fused. Pyloric caeca elongated. Body pale brown, orobranchial cavity pale, peritoneum brown-black, stomach pale.

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Andriashev view ventral vladibeckeri ; 11460 c – 1.

Careproctus , girdle LACM.

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FIGURE pectoral b.

Distribution. Probably circumantarctic: the holotype was collected east of the tip of the Antarctic peninsula, and both paratypes are from the northern Ross Sea. The collection depth of 952m given by Andriashev & Stein (1998) for ZISP 50830 is almost certainly a labeling error.

Comparisons. Most similar to C. parviporatus Andriashev & Stein, 1998 , but differs in having larger circumoral pores, more closely spaced chin pores (half pore diameter vs one pore diameter), larger terminal mouth (11– 13 vs 8% SL and subterminal), length of pyloric caeca (7–8 vs 3–4% SL), and a darker peritoneum (brown-black vs pale brown).