Laubierinia globulifera (Wood-Mason & Alcock, 1891) Yan & Lee & Forges & Ng, 2021

Yan, Bee, Lee, Forges, Bertrand Richer De & Ng, Peter K. L., 2021, The generic affinities of the Indo-West Pacific species assigned to Rochinia A. Milne-Edwards, 1875 (Crustacea: Brachyura: Majoidea: Epialtidae), Raffles Bulletin of Zoology 69, pp. 19-44 : 26-28

Laubierinia globulifera (Wood-Mason, in Wood-Mason & Alcock, 1891), new combination

( Figs. 5A–F , 8A, B )

Pugettia globulifera Wood-Mason , in Wood-Mason & Alcock, 1891: 260 (type locality: Andaman Sea).

Scyramathia globulifera – Alcock, 1895: 205. – Alcock & Anderson, 1895: pl. 20 fig. 3, 3a. – Alcock, 1899: 5 (list), 54. – Doflein, 1904: 85.

Rochinia globulifera – Serène & Lohavanijaya, 1973: 56 (key). – Griffin & Tranter, 1986a: 175 (key), 179, fig. 62a, b. – Casadío et al., 2005: 159 (list). – Ng & Richer de Forges, 2007: 62 (list). – Ng et al., 2008: 105 (list). – Huys et al., 2014: 15 (table). – Tavares & Santana, 2018: 223 (list).

Material examined. Lectotype (herein designated): female (11.0 × 6.7 mm) (NHM 96.5.14.2), off Sentinel , Andaman , 439 m, no other data. Others: 1 male (9.2 × 6.0 mm) (AM P.34652), stn 7, Bali Sea, Indonesia, 8 ° 29′S 114 ° 40′E, 200 m, coll. Java-South Africa Expedition, 5 April 1929.

Comparative material examined. See Appendix 1.

Remarks. Pugettia globulifera Wood-Mason , in Wood- Mason & Alcock, 1891, was described with no indication of the number of specimens examined. In his description, however, only a single length measurement was presented but there are no indications if he had more specimens. For the other species described or recorded in the same paper, the number of specimens was typically provided. The specimen he discussed was collected from Station 56, which is between North Sentinel and South Sentinel islands (Andaman Is.), at a depth between 220–240 fathoms (407–444 m) (see Huys et al., 2014: 45 (Appendix 2)). In the NHM, there is a single female specimen labelled as a “ syntype ” for this species, with the locality information of the specimen exactly matching the collected locality. The specimen also matches the brief description by Wood-Mason & Alcock (1891: 260–261). Wood-Mason & Alcock (1891: 261) recorded the carapace length of their specimen as 15.5 mm but they did not explain how it was measured although it probably included the pseudorostral spines. The carapace length of the present specimen (NHM 1896.5.14.2) is 11.0 mm, excluding the pseudorostral spines, and in proportions, and appears to match the type. It also agrees well with the original figure of the species in Alcock & Anderson (1895: pl. 20 fig. 3, 3a), but the problem is that their caption stated that it was a male specimen. No male specimen, however, was found in the NHM. From the available information, it would therefore appear that Wood-Mason & Alcock (1891) had at least two specimens, one male (the one figured) and one female (the one present in NHM). As such, the syntype specimen (NHM 1896.5.14.2) is here designated as the lectotype of Pugettia globulifera Wood-Mason , in Wood-Mason & Alcock, 1891.

Griffin & Tranter (1986a) examined two male specimens of L. globulifera , new combination, from Bali Sea and compared them to the male specimen from Andaman Sea that was figured by Alcock & Anderson (1895: pl. 20 fig. 3, 3a). The lectotype female specimen examined here agrees best with the diagnosis of Laubierinia ; notably in that it has the characteristic laterally flattened branchial plate found on the lateral border of the carapace ( Fig. 5C, F ). Laubierinia globulifera , new combination, also has a distinct strong rounded granule on the ventral side of the hepatic plate, a character present but weaker in the two congeners ( Fig. 5B, E ).

Distribution. Laubierinia globulifera , new combination, is recorded from its type locality, Andaman Sea ( Wood-Mason & Alcock, 1891), and Indonesia ( Griffin & Tranter, 1986a).

Figures

Fig. 5. Laubierinia globulifera (Wood-Mason, in Wood-Mason & Alcock, 1891) new combination. A–C, lectotype female (11.0 × 6.7 mm) (NHM 96.5.14.2), Andaman; D–F, male (9.2 × 6.0 mm) (AM P.34652), Indonesia. A, D, overall dorsal view; B, E, overall ventral view; C, F, lateral view of carapace.

Fig. 8. A–C, Siderochinia kagoshimensis (Rathbun, 1932) new combination, holotype male (11.2 × 6.8 mm) (USNM 48253), Japan; D–F, S. aglaos, new species, holotype male (10.7 × 6.9 mm) (ZRC 2016.0549), South China Sea. A, D, side view of cardiac spine; B, E, dorsal view of intestinal spine along lateral carapace margin; C, F, dorsal view of P5.