Munidopsis pyrochela Ahyong, 2014

Ahyong, Shane T., Schnabel, Kareen E. & Baba, Keiji, 2015, Southern High Latitude Squat Lobsters: Galatheoidea and Chirostyloidea from Macquarie Ridge with Description of a New Species of Uroptychus, Records of the Australian Museum 67 (4), pp. 109-128 : 124

Munidopsis pyrochela Ahyong, 2014

Fig. 5C

Munidopsis sp. — O’Shea et al., 1999: 51, fig. 27. — Poore et al., 2011, pl. 23F.

Munidopsis serricornis . —Baba & Poore, 2002: 241–244, figs. 6 A, B, 7A, 8A, 9A, B [part]. —Ahyong & Poore, 2004b: 46, 57. — Poore, 2004: 235, 237, fig. 65g. — Yaldwyn & Webber, 2011: 214.

Munidopsis cf. serricornis . — Webber et al., 2010: 226. — Taylor et al., 2010: 15. —Rowden e t al., 2011: 73.

Munidopsis pyrochela Ahyong, 2014: 207 , figs. 6, 9 (type locality: Ritchie Seamount, E Chatham Rise, 44°10.0– 10.1'S, 174°34.4–35.7'W, 836–1100 m).

Material examined. Macquarie Ridge: NIWA 39722 , 1 male (pcl 13.6 mm), Clementsville seamount, 50°05.43– 05.31'S, 163°28.92–28.32'E, 1077–1408 m, 01 April 2008, TAN0803/33 .

Diagnosis. Rostrum broad, flat, medially carinate, trifid distally. Carapace with pair of epigastric spines, otherwise unarmed dorsally; surface of dorsal half with faint short striae; lateral margins with 4 spines (1 anterolateral, 3 branchial); posterior orbital margin transverse; outer orbital spine distinct. Abdominal tergites unarmed. Telson with 8 plates. Maxilliped 3 merus flexor margin with 2 or 3 spines. P1 carpus length less than twice width, dorsal surface unarmed; merus with 3 longitudinal rows of prominent spines (dorsal, mesial, ventromesial). P2–4 meri distinctly spinose along extensor margin; dactyli flexor margin with movable spines, and more slender movable spine at base of corneous unguis. Pereopods without epipods. (After Ahyong, 2014).

Colour in life ( Fig. 5C ). Carapace and abdomen off-white; lateral margins and ridges with pale orange-brown marks. Chelipeds deep orange-red. Walking legs off-white. Cornea pale pink.

Remarks. The present specimen of Munidopsis pyrochela is the southernmost documented representative of the Munidopsis serricornis group. It is a common seamount species occurring in New Zealand, southeastern Australia, and the southwest Indian Ocean (Ahyong, 2014).

Distribution. New Zealand and southeastern Australia, ranging in the east from the Chatham Rise and Snares Islands, south to the Macquarie Ridge and westwards to Tasmania including the South Tasman Rise and Cascade Plateau; also the Southwest Indian Ocean Ridge; 392–1414 m.

Figures

Figure 5. Colour in life. (A) Uroptychus insignis (Henderson, 1885), male pcl 13.1 mm, Hjort Seamount, Macquarie Ridge, TAN0803/98 (NIWA 40664).(B) Uroptychustracey n. sp., holotype, malepcl 7.2 mm, Iceberg Seamount,Andes seamount complex,TAN0905/119 (NIWA 54266). (C) Munidopsis pyrochela Ahyong, 2014, male pcl 13.6 mm, Clementsville Seamount, Macquarie Ridge, station TAN0803/33 (NIWA 39722). Scale = 10 mm.