Revision of the spider crab genus Maja Lamarck, 1801 (Crustacea: Brachyura: Majoidea: Majidae), with descriptions of seven new genera and 17 new species from the Atlantic and Indo-West Pacific Author Ng, Peter K. L. Author Forges, Bertrand Richer De text Raffles Bulletin of Zoology 2015 2015-05-29 63 110 225 journal article 10.5281/zenodo.5384590 2345-7600 5384590 40BCDD62-D35E-46D1-95A3-2CC0DF219DEE Paramaya ouch n. sp. ( Figs. 1B , 2D , 21E, F , 23D–F , 37B , 40B , 45J, K , 50B , 54B , 70A ) Material examined. Holotype : male (76.8 × 60.0 mm) ( NMCR ), Balicasag Island , Panglao , Bohol , Philippines , coll. local fishermen in tangle nets, July 2003 . Paratypes : Philippines – 2 ovigerous females (75.1 × 58.0 mm, 63.2 × 49.3 mm ) ( ZRC 2013.1312 ), same data as holotype. — 1 male (NSMT-Cr 16646), Balicasag Island , Panglao , Bohol , coll. local fisherman via T . Kase , 6–10 March 1999 . — 2 males , 1 female (NSMT-Cr 15391), Balicasag Island , Panglao , Bohol , coll. local fisherman via T . Kase , 6–10 March 1999 . — 2 young females (19.0 × 13.7 mm , 28.0 × 20.6 mm ) ( ZRC 2013.1282 , ex part ZRC 2001.0411 ), Balicasag Island , Panglao , Bohol , coll. fishermen in tangle nets , December 2000 . — 3 males (largest 76.5 × 61.3 mm , one smaller male with rhizocephalan), 2 ovigerous females (larger 60.6 × 74.1 mm ), 3 females ( ZRC 2001.0577 ), Balicasag Island , Panglao , Bohol , 200–300 m , coll. fishermen in tangle nets , 28 November 2001 . — 4 males (65.0 × 50.4 mm , 53.3 × 40.1 mm , 69.0 × 52.9 mm , 70.7 × 51.7 mm [with rhizocephala], 1 ovigerous female (64.9 × 51.8 mm ), 3 ovigerous females (with rhizocephalan) (56.9 × 40.9 mm , 68.9 × 53.5 mm , 58.7 × 42.5 mm ), 1 young female (30.0 × 22.5 mm ) ( ZRC 2013.1187 ), Balicasag Island , Panglao , Bohol , 200–300 m , coll. fishermen in tangle nets , June 2002 . — 1 juvenile male (2013.1313), Balicasag Island , Panglao , Bohol , 200–300 m , coll. fishermen with tangle nets , June 2002 . — 1 male (56.1 × 40.5 mm ), 1 female (47.7 × 36.1 mm ) ( AM , ex ZRC 2001.0374 ), Balicasag Island , Panglao , Bohol , 200–300 m , coll. fishermen in tangle nets , December 2000 . — 1 female (46.5 × 36.9 mm ) ( ZRC 2013.1299 ), Balicasag Island , Panglao , Bohol , coll. fisherman with tangle nets , 25 October 2003 . — 4 males (54.5 × 42.1 mm , 71.4 × 56.5 mm , 75.8 × 62.0 mm, 48.7 × 36.8 mm ), 4 females (55.0 × 43.0 mm, 66.5 × 52.5 mm , 57.6 × 44.5 mm , 65.5 × 50.8 mm ) ( ZRC 2012.1207 ), Balicasag , Panglao , Bohol , 200–300 m , coll. local fishermen with tangle nets , November 2003 – May 2004 . — 1 male (32.7 × 25.2 mm ) ( ZRC 2013.1283 ), Balicasag Island , Panglao , Bohol , coll. fisherman with tangle nets , February 2004 . — 1 female (42.6 × 34.5 mm ) ( ZRC 2013.1300 ), Balicasag Island , Panglao , Bohol , coll. fisherman with tangle nets , May 2004 . — 1 male (33.0 × 26.1 mm ) ( ZRC 2013.1298 ), station PN 1, Balicasag Island , Panglao , Bohol , 200–300 m , coll. fishermen with tangle nets , January 2004 . — 1 young female ( ZRC 2013.1281 ), Balicasag Island , Panglao , Bohol , 200–300 m , coll. fishermen with tangle nets , February 2004 . — 1 female (53.3 × 43.4 mm ) ( ZRC 2013.1305 ), station PN1, Balicasag Island , Panglao , Bohol , 200–300 m , coll. fishermen with tangle nets , 28 May 2004 . — 1 female (53.3 × 43.4 mm ) ( ZRC 2013.1305 ), station PN 1, Balicasag Island , Panglao , Bohol , 200–300 m , coll. fishermen with tangle nets , 28 May 2004 . — 2 males (37.2 × 29.3 mm , 50.3 × 38.5 mm [damaged]), 1 female (62.7 × 52.0 mm) ( ZRC 2013.1306 ), station P4, Balicasag Island , Panglao , Bohol , 200–300 m , coll. fishermen with tangle nets , 4 June 2004 . — 1 male (65.0 × 50.6 mm ), 1 female (70.0 × 54.6 mm ), 2 ovigerous females (69.4 × 53.6 mm , 71.2 × 56.5 mm ) ( ZRC 2012.1209 ), Balicasag , ca. 100 m , 9°31.1’N 123°41.5’E , Panglao , Bohol , 200–300 m , coll. local fishermen with tangle nets, coll. PANGLAO 2004 , June 2004 . — 1 male (69.5 × 53.7 mm ), 1 female (41.5 × 30.6 mm ) ( ZRC 2012.1208 ), Maribojoc Bay , Panglao , coll. J. Arbasto , November 2003 – April 2004 . — 1 ovigerous female (68.3 × 54.2 mm , with rhizocephala) ( ZRC 2013.1317 ), northwest coast of Panglao , Bohol , 120–160 m , coll. J. Arbasto , tangle nets, 1 December 2007 . — 1 ovigerous female (63.7 × 50.8 mm , with rhizocephala), 1 young female (56.4 × 44.1 mm ) ( USNM ), northwest coast of Panglao , Bohol , coll. J. Arbasto , tangle nets, 2006. — 1 male (39.7 × 29.6 mm , photographed) ( ZRC 2011.0045 ), northwest coast of Panglao , Bohol , 80–300 m , coll. J. Arbasto , January-March 2011. Fig. 21. General habitus, Paramaya species. A , P. spinigera (as Maja ( Paramaya ) spinigera , after De Haan, 1837: pl. 24, fig. 4); B, P. spinigera , dried female (70.1 × 58.8 mm) (KPM NH4195), Japan; C, P. spinigera , male (64.7 × 51.2 mm) (NHM 1961.6.5.117), Japan; D, P. spinigera , male (85.0 × 66.4 mm) (ZRC 1999.738), Taiwan; E, P. ouch n. sp. , paratype male (39.7 × 29.6 mm) (ZRC 2011.0045), Philippines; F, P. ouch n. sp. , holotype male (76.8 × 60.0 mm) (NMCR), Philippines. Fig. 22. General habitus. A, Paramaya coccinea n. sp. , holotype male (69.0 × 55.6 mm) (MNHN), Vanuatu; B, “ Maja spinigera ” (ca. 70 mm carapace length), Sri Lanka, not preserved (photograph: R. Pethiyagoda); C, D, “ Maja spinigera ” (after Alcock & Anderson, 1898 : pl. 34, fig. 3). Diagnosis. Pseudorostral horns very long ( Fig. 21E, F ). Hepatic, lateral and branchial spines very long; median row with 4 or 5 spines: 2 or 3 gastric, 1 cardiac, 1 intestinal; 2 strong spines on posterior carapace margin ( Fig. 21E, F ). Surface of thoracic sternum distinctly granulated ( Fig. 50B ). Chela of adult male slender, without distinct carina ( Fig. 54B ). Ambulatory meri in adults relatively slender, long ( Fig. 21E, F ). G1 more strongly curved especially distally ( Fig. 23D–F ). Etymology. The name is derived from the old English word for jewel and ornament, alluding to the beautiful arrangement of red spines and tubercles of the species. It also indirectly alludes to the exclamation for pain, associated with careless handling of the present spiny species. Used as a noun in apposition. Remarks. The character used in their keys by Serène & Lohavanijaya (1973) , T. Sakai (1976) and Griffin & Tranter (1986) concerning a proximal tooth on the outer margin of antenna looks very variable. On some specimens there are only two branchial spines. Even on the juvenile specimens (female 28 mm carapace length, ZRC 2013.1282) the characteristics of P. ouch n. sp. are well marked: the pseudorostral spines are long and very divergent but less curved upward than in the adults; and the spines on the lateral margin of the carapace are very long. Paramaya ouch is superficially similar to P. spinigera but can be distinguished easily by the following characters: the spines are proportionately much longer in P. ouch than in P. spinigera ( Fig. 21E, F versus Fig. 21A–D ); the antorbital spine is relatively shorter and not as curved as in P. ouch ( Fig. 37B ) than in P. spinigera ( Fig. 37A ); and the G1 of P. ouch is more distinctly curved distally ( Fig. 23D–F ) (versus less curved in P. spinigera , Fig. 23A–C ). The structure of the chela is interesting because in P. spinigera , the adult male chela is distinctly inflated and the margins are clearly carinated ( Fig. 54A ). In adult P. ouch , the male chela is not inflated and there is no distinct carina, although in some of the largest males, the proximal part appears to be weakly carinated ( Fig. 54B ). Whether the carina is associated with size or dominance, or is a useful species character cannot be ascertained. Fig. 23. Left G1s, Paramaya species. A –C, P. spinigera , male (85.0 × 66.4 mm) (ZRC 1999.738), Taiwan; D–F, P. ouch n. sp. , holotype male (76.8 × 60.0 mm) (NMCR), Philippines; G–I, P. coccinea n. sp. , holotype male (69.0 × 55.6 mm) (MNHN), Vanuatu. Scale bars = 5.0 mm [A, D, G]; 1.0 mm [B, C, E, F, H, I]. Paramaya ouch is very common on the reef slopes of Balicasag Island. The large series of males, females and juveniles were useful to observe the variation of spines with size.