Carcinoplax verdensis Rathbun, 1914: 143
Tesch 1918: 154
Estampador 1937: 533
Serène 1968: 90
Sakai 1969: 269
Serène & Lohavanijaya 1973: 62
Serène & Vadon 1981: 119
Guinot 1989: 300
Ng et al. 2008: 80
Carcinoplax longipes
Chen 1984: 189
Ikeda 1998: 15
C. longipes (Wood-Mason, 1891))
Carcinoplax aff. longipes
Guinot 1989: 305
Carcinoplax specularis
Castro 2007: 640
Carcinoplax verdensis
Selvaraj & Kathirvel 1980: 159
C. indica Doflein, 1904
A revision of Carcinoplax abyssicola (Miers, 1885) and seven related species of Carcinoplax H. Milne Edwards, 1852, with the description of two new species and an updated key to the genus (Crustacea, Decapoda, Brachyura, Goneplacidae)
Ng, Peter K. L.
Castro, Peter
Zoosystema
2020
2020-06-09
42
17
239
284
Castro 2007: 640
7TCVN
Rathbun, 1914
Rathbun
1914
[929,1338,1428,1455]
Malacostraca
Goneplacidae
Carcinoplax
Animalia
Decapoda
23
260
Arthropoda
species
verdensis
( Figs 13A-J; 14A-H; 15A-G; 24A-H; 28A-F)
Carcinoplax verdensis Rathbun, 1914: 143[type locality: southern Luzon, Philippines]. — Tesch 1918: 154[in list]. — Estampador 1937: 533[in list]; 1959: 89 [in list] [ Philippines]. — Serène 1968: 90[in list]. — Sakai 1969: 269[in list], fig. 15d [ holotype]. — Serène & Lohavanijaya 1973: 62[in list], 65 [in key]. — Serène & Vadon 1981: 119, 123, 126 [ Philippines]. — Guinot 1989: 300, fig. 22; pl. 9, figs D-F [ holotype] [ Philippines]. — Ng et al.2008: 80[in list]. Carcinoplax longipes– Chen 1984: 189[in key], 195, 197, fig. 6 [East ChinaSea]. — Ikeda 1998: 15, 42, 135, pl. 55 [ Japan] (not C. longipes(Wood-Mason, 1891)). Carcinoplaxaff. longipes – Guinot 1989: 305, figs 27, 35, 36; pl. 10, figs D-G [ Philippines]. Carcinoplax specularis[part] – Castro 2007: 640[ Philippines]. Not Carcinoplax verdensis– Selvaraj & Kathirvel 1980: 159, figs 1, 2 [ India] ( C. indica Doflein, 1904).
TYPE MATERIAL. — Holotype. Philippines• Ovigerous ♀, 10.5 × 13.0 mm; Albatross; stn 5119; USNM 46167.
TYPELOCALITY. — Philippines, off Sombrero I., Verde I. Passage, 159-394 fathoms (= 291-721 m),
MATERIAL EXAMINED. — Taiwan• 1♂(badly damaged); stn CP19, southwestern Taiwan; 22°24.2’N 120°10.2’E- 22°23.8’N 120°09’E; 467-634 mdepth; coll. T.-Y. Chan; 29.VII.2000; ZRC 2001.2216. Philippines.1 ovigerous ♀, holotype10.5 × 13.0 mm; Albatross, stn 5119, off Sombrero I., VerdeI. Passage; 291-721 mdepth; 21.I.1908; USNM 46167• 1 ♀; MUSORSTOM 3, stn CP116; 12°32’N, 120°47’E; 804-812 mdepth; 3.VI.1985; MNHN-IU-2016-8001• 2 ♀, 9.2 × 12.1 mm, 12.0 × 16.7 mm, 8 ♂(2 with bopyrids); MUSORSTOM 3, Bohol, BalicasagI., off PanglaoI., tangle nets of local fishermen; 09°31’00.2”N, 123°40’50.5”E; 200-300 mdepth; XII.2000; ZRC 2001.0395• 1 ♀; MUSORSTOM 3, tangle nets of local fishermen; 09°31’00.2”N, 123°40’50.5”E; 200- 300 mdepth; XII.2000; ZRC 2019.0544• 1 ♂, 14.9 × 20.2 mm; PANGLAO 2005, stn CP2332, Maribohoc Bay; 09°38.8’N, 123°45.9’E; 396-418 mdepth; 22.V.2005, ZRC 2019.0547, ex ZRC 2006.0214(part)• 1 ♀, 5.8 × 8.1 mm; PANGLAO 2005, stn DW2338, off Balicasag Island; 09°30.7’N, 123°42.4 ‘E; 347-349 mdepth; 23.V.2005; ZRC 2019.0548• 1 ♂, 19.0 × 27.7 mm; PANGLAO 2005, stn CP2339, off Balicasag Island; 09°31.9’N, 123°43.7’E, 164-176 mdepth; 23.V.2005; ZRC 2019.0550• 1 ♀, 10.9 × 14.4 mm; same data as ZRC 2019.0550; ZRC 2019.0573• 1 ♂, 3.8 × 4.8 mm; PANGLAO 2005, stn CP2359, Bohol Sea; 08°49.9’N, 123°34.9’E; 437-476 mdepth; 26.V.2005, ZRC 2019.0553• 1 ♂, 15.7 × 21.4 mm, ZRC 2019.0549• 1 juvenile ♂; same data as ZRC 2019.0549; ZRC 2009.0990• 2 ♀, 12.4 × 17.1 mm, 13.0 × 18.3 mm; PANGLAO 2005, stn CP2361, Bohol Sea; 08°53.1’N, 123°33.5’E; 516-543 mdepth; 26.V.2005; ZRC 2019.0554• 11 ♀(1 with rhizocephalan), 4 ♂, 1 juvenile; PANGLAO 2005, stn CP2384, off Aligbay Island; 08°46.2’N, 123°16.1’E; 624-647 mdepth; 29.V.2005; ZRC 2019.0546• 1 ♂, 16.9 × 23.0 mm; PANGLAO 2005, stn CP2385; 08°51.0’N, 123°10.0’E, 982-989 mdepth; 29.V.2005; ZRC 2009.1003• 1 ♂, with sacculinid; PANGLAO 2005, stn CP2386; 08°49.3’N, 123°01.9’E, 2120-2149 mdepth(?); 29.V.2005; ZRC 2019.0556• 1 ♀, 10.9 × 14.6 mm; PANGLAO 2005, stn CP2388, Maribohoc Bay; 09°26.9’N, 123°34.5’E; 762-786 mdepth; 30.V.2005, ZRC 2019.0551• 2 ♂, 11.6 × 15.4 mm, 11.0 × 14.6 mm; same data as ZRC 2019.0551; ZRC 2019.0571• 2 ♂, larger one 19.2 × 27.7 mm, 2 ♀; PANGLAO 2005, stn CP2389, Bohol Sea; 09°27.9’N, 123°38.4’E; 784- 786 mdepth; 30.V.2005; ZRC 2019.0555• 2 ♂, 9.6 × 12.0, 12.8 × 17.1 mm; PANGLAO 2005, stn CP2394, off Balicasag Island; 09°28.6’N, 123°40.0’E; 470-566 mdepth; 30.V.2005: ZRC 2019.0557• 1 ♂, 10.0 × 13.4 mm; same data as ZRC 2019.0557; ZRC 2019.0574• 3 ♂, 8.7 × 10.1 mm, 9.8 × 11.8 mm, 17.6 × 13.7 mm; PANGLAO 2005. stn CP2396, west Panglao, on sandy bottom; 09°36.3’N 123°42.0’E; 673- 715 mdepth; 31.V.2005; ZRC 2016.0446• 2 ♂, 1 ♂, 13.2 × 16.1 mmwith sacculinid; PANGLAO 2005, stn CP2405, on sandy-muddy bottom; 09°39.0’N 123°46.1’E, 1.VI.2005; ZRC 2006.0199• 1 ♂, 1♀, (both with bopyrids); PANGLAO 2005, stn CP2358, Bohol Sea; 08°52.1’N, 123°37.1’E; 569-583 mdepth; 26.V.2005; ZRC 2016.0439• 1 ♂(with bopyrid); PANGLAO 2005, stn CP2396, Maribojoc Bay, 09°36.3’N, 123°42.0’E; 609- 673 mdepth; 31.V.2005; ZRC 2016.0447• 1 ♂, (with bopyrid); PANGLAO 2005, stn CP2405, Maribojoc Bay; 09°39.0’N, 123°46.1’E; 387-453 mdepth; 1.VI.2005; ZRC 2016.0436• 1 ♀(with bopyrid), station unknown; Bohol Sea; V-VI 2005; ZRC 2016.0441• 1 ♀, 12.8 × 17.9 mm; AURORA 2007, stn CP2673, Luzon Sea; 14°59.83’N, 121°43.90’E- 15°01.44’N, 121°44.75’E; 431-493m; 22.V.2007; ZRC 2019.0559• 1 ♀, 7.9 × 10.9 mm; AURORA 2007, stn DW2692, Luzon Sea; 14°40.15’N, 123°40.06’E- 14°40.45’N, 123°40.59’E; 261- 272 mdepth; 26.V.2007; ZRC 2019.0560. South China Sea• 1 ♀, ovigerous 9.4 × 13.0 mm; NANHAI 2014, stn CP4117, LL4; 20°00.8788’N, 114°08.7974’E; 333- 421 mdepth; 11.I.2014, ZRC 2019.0561• 1 ♀, 1 ♂; same data as stn CP4117; ZRC 2019.0210• 1 ♀; ZHONGSHA 2015, stn CP4155, northeast of Macclesfield Bank; 16°13.60’N, 115°01.61’E; 510-526 mdepth; 28.VII.2015; ZRC 2019.0562• 1 ♂, 11.1 × 16.0 mm; ZHONGSHA 2015, stn CP4165, south of Taiwan Bank; 22°09.888’N, 118°42.023’E; 443-618 mdepth; 1.VIII.2015; ZRC 2019.0563• 1 ♀; ZHONGSHA 2015, stn CP4166, south of Taiwan Bank; 22°07.6245’N, 118°43.3003’E; 587-756 mdepth; 1.VIII.2015; ZRC 2019.0564• 1 ♀, 6.8 × 8.8 mm; ORI3 CRUISE, stn 9, Tungsha Is, 21°40.293’N 117°43.244’E- 21°38.995’N 117°41.649’E; 523- 510 mdepth; coll. I.-S. Chen; 9.VII.2011; ZRC 2019.0374.
DIAGNOSIS. — Carapace ( Figs 13A, B; 14A, B; 15A, B) quadrate, slightly wider than long (1.4 × wider than long in holotype); slightly convex, slight transverse elevations, slight tomentum. Front ( Figs 13C, D; 14C, D; 15C) straight, notch on each lateral margin absent or slight if present. Rounded, short tooth on outer orbital angle; two slender, acute-tipped anterolateral teeth on each side of carapace. Small, short granules on subhepatic, pterygostomial regions ( Figs 13D; 14D), becoming more pronounced in pterygostomial crest, ridge; short granules on anterior, dorsal surface of carapace. Posterior margin of epistome ( Figs 13D; 14D) straight, slight median emargination in some specimens, shallow notch on each lateral margin. Distal half of fingers dark brown in females ( Figs 13A, I, J; 15A), two third in males ( Fig. 14A, H). “Window” not observed on outer surface of cheliped propodus. Inner (ventral), distal margin of cheliped carpus ( Figs 13F; 14F; 15E) with acute, conspicuous tooth. P2-P5 ( Figs 13A; 14A; 15A; 28A-F) slender in appearance. Malepleon proportionally wide ( Fig. 14G). G1 ( Fig. 24A-C, E, G) slender; pointed tip with scattered spinules, abundant, almost reaching margin of tip in some individuals; G2 ( Fig. 24D, F, H) slender, nearly equal or slightly longer than G1, slightly curved flagellum, tip with two lateral spinules. COLOUR IN LIFE. — Orange carapace that intensifies with age, at least in females ( Fig. 27D-F). The legs (P2-P5) of females show thin, red bands across the middle portion. Males are orange without any banding on the legs ( Fig. 27A-C).
GEOGRAPHICAL DISTRIBUTION. — Japan, East ChinaSea, Taiwan, Philippines, and South ChinaSea. DEPTH. — Present in samples collected at depths of 164-989 m; 2120-2149 min one station, possibly an error.
REMARKS See Remarks for C. abyssicola. The relatively long, acute, and conspicuous tooth on the inner distal angle of the cheliped carpus ( Figs 13F; 14F; 15E) is a good character to distinguish C. verdensis, with most specimens showing this character. No other species treated here has this character. Some specimens (e.g. 1 ♀, 12.8 × 17.9 mm, ZRC 2019.0559) have lower, more obtuse cheliped carpal spines, not acute and elongated as is typical specimens. Guinot (1989), who only observed the holotype, separated C. verdensisbecause of the absence of the “window” of C. specularis, the acute anterolateral teeth, and relatively more slender legs (P2-P5). The ambulatory meri of C. verdensisare indeed one of the longest in the group (see remarks for C. abyssicola), although in a few specimens, the legs are somewhat shorter (e.g. Fig. 28E, F). A very large (54.0 × 69.0 mm) male specimen from southwestern Indiaidentified as C. verdensisby Selvaraj & Kathirvel (1980: 159, figs 1, 2) is clearly not this species as presently defined. Carcinoplax verdensisdoes not grow to such a large size, and the general carapace facies and G1 structure also do not match. The photograph of the overall habitus is too poor to see distinguishing characters and it probably belongs to C. indica Doflein, 1904instead. This species was described from the Andamans and is known to grow to very large sizes. The size of the Indian specimen also argues against it being C. longipes, C. fasciata Ng & Kumar, 2016, or C. mistio Ng & Mitra, 2019.
2636192305
USNM
Philippines
Ovigerous
Albatross
26
263
USNM 46167
1
1
holotype
2636192435
1908-01-21
2000-07-29
1908-01-21
ZRC, USNM
T. - Y. Chan & Philippines. & Albatross & Sombrero I. & Verde & Passage
551
22.396667
southwestern Taiwan
860
120.15
26
263
ZRC 2001.2216, USNM 46167
2
1
1
holotype
2636192378
1985-06-03
808
12.533334
1293
120.78333
26
263
MNHN-IU-2016-8001
1
1
2636192411
2000-12
ZRC
Panglao
250
9.516722
Bohol
1
123.680695
Balicasag
26
263
ZRC 2001.0395
10
2
8
holotype
2636192328
2000-12
ZRC
250
9.516722
1
123.680695
26
263
ZRC 2019.0544
1
1
holotype
2636192366
2005-05-22
ZRC
407
27
264
9.646667
Maribohoc Bay
129
123.765
26
263
ZRC 2019.0547, ZRC 2006.0214
1
1
holotype
2636192317
2005-05-23
ZRC
348
9.511666
Balicasag Island
129
123.706665
27
264
ZRC 2019.0548
1
1
holotype
2636192336
2005-05-23
ZRC
170
9.531667
Balicasag Island
129
123.72833
27
264
ZRC 2019.0550
1
1
holotype
2636192447
2005-05-23
ZRC
170
9.531667
Balicasag Island
129
123.72833
27
264
ZRC 2019.0573
1
1
holotype
2636192423
2005-05-26
ZRC
456
8.831667
Bohol Sea
129
123.581665
27
264
ZRC 2019.0553
1
1
holotype
2636192316
ZRC
27
264
ZRC 2019.0549
1
1
holotype
2636192348
ZRC
27
264
ZRC 2009.0990
2
1
1
holotype
2636192385
2005-05-26
ZRC
530
8.885
Bohol Sea
129
123.558334
27
264
ZRC 2019.0554
2
2
holotype
2636192311
2005-05-29
ZRC
636
8.77
Aligbay Island
129
123.26833
27
264
ZRC 2019.0546
16
11
1
4
holotype
2636192325
2005-05-29
ZRC
986
8.85
129
123.166664
27
264
ZRC 2009.1003
1
1
holotype
2636192365
2005-05-29
ZRC
2135
8.821667
129
123.03167
27
264
ZRC 2019.0556
1
1
holotype
2636192368
2005-05-30
ZRC
774
9.448334
Maribohoc Bay
129
123.575
27
264
ZRC 2019.0551
1
1
holotype
2636192432
2005-05-30
ZRC
774
9.448334
Maribohoc Bay
129
123.575
27
264
ZRC 2019.0571
2
2
holotype
2636192302
2005-05-30
ZRC
785
9.465
Bohol Sea
129
123.64
27
264
ZRC 2019.0555
4
2
2
holotype
2636192350
2005-05-30
ZRC
518
9.476666
Balicasag Island
129
123.666664
27
264
ZRC 2019.0557
2
2
holotype
2636192347
2005-05-30
ZRC
518
9.476666
Balicasag Island
129
123.666664
27
264
ZRC 2019.0574
1
1
holotype
2636192390
2005-05-31
ZRC
694
9.605
west Panglao
129
123.7
27
264
ZRC 2016.0446
3
3
holotype
2636192446
2005-06-01
ZRC
9.65
129
123.76833
27
264
ZRC 2006.0199
3
3
holotype
2636192345
2005-05-26
ZRC
576
8.868333
Bohol Sea
129
123.61833
27
264
ZRC 2016.0439
2
1
1
holotype
2636192334
2005-05-31
ZRC
641
9.605
Maribojoc Bay
129
123.7
27
264
ZRC 2016.0447
1
1
holotype
2636192459
2005-06-01
ZRC
420
9.65
Maribojoc Bay
129
123.76833
27
264
ZRC 2016.0436
1
1
holotype
2636192329
ZRC
Bohol Sea
27
264
ZRC 2016.0441
1
1
holotype
2636192357
2007-05-22
ZRC
462
15.024
Luzon Sea
13
121.745834
27
264
ZRC 2019.0559
1
1
holotype
2636192386
2007-05-26
ZRC
267
14.674167
Luzon Sea
13
123.6765
27
264
ZRC 2019.0560
1
1
holotype
2636192342
2014-01-11
ZRC
China
377
20.014647
Sea
1
114.14662
27
264
ZRC 2019.0561
1
1
Sea
2636192460
2014-01-11
ZRC
China
377
20.014647
Sea
1
114.14662
27
264
ZRC 2019.0210
2
1
1
Sea
2636192394
2015-07-28
ZRC
China
518
16.226667
Macclesfield Bank
13
115.02683
27
264
ZRC 2019.0562
1
1
Sea
2636192333
2015-08-01
ZRC
China
531
22.1648
Taiwan Bank
1
118.700386
27
264
ZRC 2019.0563
1
1
Sea
2636192398
2015-08-01
ZRC
China
672
22.127075
Taiwan Bank
1
118.72167
27
264
ZRC 2019.0564
1
1
Sea
2636192335
2011-07-09
ZRC
I. - S. Chen
China
510
21.649918
Tungsha Is
1
117.69415
27
264
ZRC 2019.0374
1
1
Sea