Parasesarma lenzii (De Man, 1895 )

Li, Jheng-Jhang, Shih, Hsi-Te & Ng, Peter K. L., 2019, Fig. 1. Norileca indica and its protandrous hermaphroditic reproductive system. A in Chloeia incerta de Quatrefages 1866, Zoological Studies 58 (40), pp. 1-23 : 19

Parasesarma lenzii (De Man, 1895) ( Fig. 12A, B )

Sesarma (Parasesarma) lenzii De Man, 1895: 199 , pl. 30 (35).

Sesarma (Parasesarma) lenzii – Tesch 1917: 168 (list).

Sesarma lenzii – Tweedie 1950: 131.

Parasesarma lenzii – Serène 1968: 108 (list); Ng et al. 2008: 222 (list); Shahdadi & Schubart 2017: 536 (list); Cannicci et al. 2007: 91– 97 (list), fig. 3; Ng et al. 2008: 222 (list); Shahdadi et al. 2019b: 740, figs. 1–3.

Parasesarma sp. 2 – Li and Chiu 2013: 83.

Parasesarma aff. lenzii – Ng et al. 2016: 261.

Material examined: Taiwan: Hengchun, Pingtung: 1ò (18.6 × 16.5 mm) (NCHUZOOL 15642), Dingtanzih, Hengchun, coll. P.-Y. Hsu et al., 3 Mar. 2018; 1ñ (13.6 × 11.3 mm) (NCHUZOOL 15643), Dingtanzih, coll. P.-Y. Hsu et al., 3 Sep. 2017; 1ñ (16.5 × 14.2 mm) (NCHUZOOL 15644), Siangjiaowan, coll. J.-J. Li, 5 Sep. 2012; 2ññ (13.0 × 11.2 mm, 20.3 × 17.5 mm) (NCHUZOOL 15645), Dingtanzih, coll. P.- Y. Hsu et al., 27 Aug. 2018; 2 òò (18.6 × 16.6 mm, 14.6 × 12.0 mm), 1ñ (12.0 × 9.7 mm) ( NMNS), Tanzih Fishing Port, coll. J.-J. Li, 10 Apr. 2019; 1 ò (19.5 × 17.4 mm, 15.4 × 13.5 mm) ( NMNS), Tanzih Fishing Port, coll. J.-J. Li, 4 Jul. 2019; 1 ñ (16.5 × 13.7 mm) ( ZRC 2019.1077), Dingtanzih, coll. J.-J. Li, 28 Aug. 2018; 1 ò (14.1 × 11.8 mm) ( ZRC 2019.1078), Tanzih Fishing Port, coll. J.-J. Li, 20 Aug. 2018; 8 òò (11.2–18.3 × 10.0– 16.3 mm) ( ZRC 2019.1079), Tanzih Fishing Port, coll. J.-J. Li, 29 Sep. 2018. See Shahdadi et al. (2019b: 740) for other material examined.

Remarks: The species was originally listed as “ Parasesarma sp. 2 ” in Li & Chiu (2013: 83) but comparions with material of P. lenzii from the Indian Ocean (see Shahdadi et al. 2019) show that all the specimens are morphologically identical. Genetically it also clusters with specimens from Sumatra and Cocos (Keeling) Islands ( Fig. 13 ), differing in only 1 or 2 bp. Previously, P. lenzii s. str. was only from the known from the eastern Indian Ocean, including Penang ( Malaysia), northern Sumatra ( Indonesia) and Cocos (Keeling) Islands ( Shahdadi et al. 2019b). Our study extends the distribution of this species 4600 km to Taiwan in the East Asian Arc.

Figures

Fig. 12. Coloration in life. (A, B) Parasesarma lenzii (De Man, 1895), male (CW about 15 mm, not collected) from Tanzih Fishing Port, Hengchun, Pingtung, Taiwan; (C, D) P. dumacense (Rathbun, 1914), male (23.9 × 19.1 mm, NCHUZOOL 16088) from Dongsha Island, Taiwan.

Fig. 13. A Bayesian inference (BI) tree for species of Parasesarma, based on the cytochrome c oxidase subunit I (COI) gene. Probability values at the nodes represent support values for BI and maximum likelihood (ML). For haplotype names, see table 1.