Acanthochitona intermedia ( Nierstrasz, 1905 )

Yuen, Steffi Kar Kei, Chen, Zixiao, Yuen, Skyler, Liu, Alex Qinyang, Leung, Chi-Ho, Ko, Ivan Ching Ho, Chan, Chi Kwok, Somani, Bhaskar, Herrmann, Thomas, Jung, Helene, Tokas, Theodoros, Croghan, Stefanie, Traxer, Olivier, Chiu, Peter Ka Fung, Chew, Ben, Teoh, Jeremy Yuen Chun, Gauhar, Vineet, Li, Zheng & Ng, Chi Fai, 2021, Novel non-invasive intrarenal pressure monitoring devices in flexible ureteroscopy: an in-vitro comparative study., Zoosystematica Rossica (China) 30 (1), pp. 78-93 : 79-83

publication ID	https://doi.org/10.31610/zsr/2021.30.1.78
publication LSID	urn:lsid:zoobank.org:pub:E024061D-62FD-4858-BBB3-74B60B8AB9AC
persistent identifier	https://treatment.plazi.org/id/7A164433-FFF9-FF83-FCF9-FBF9EE6AD28C
treatment provided by	Felipe
scientific name	Acanthochitona intermedia ( Nierstrasz, 1905 )
status

Treatment

Acanthochitona intermedia ( Nierstrasz, 1905) View in CoL

( Figs 1A, 1C, 2–5)

Acanthochites intermedius Nierstrasz, 1905: 56 View in CoL , pl. I,

fig. 19, pl. IV, figs 109–114.

Acanthochitona penicellatus : Ang, 1967: 394, pl. I,

figs 1–4 (non Chiton penicillatus Deshayes, 1863,

according to Saito, 2006).

Acanthochitona intermedia View in CoL : Saito, 2000: 23, pl. 11,

fig. 7; Saito, 2017: 737, pl. 10, fig. 9.

Syntypes ( two specimens; not examined). Philippines, Sulu Archipelago, Sanguisiapo, Siboga , station 93 ( ZMA; MOLL.138568) . Indonesia, Banda Is., Siboga , station 240, depth 12 m ( ZMA; MOLL.138569) .

Material examined. South China Sea, Spratly Is.: 1 intermediate valve, 11°23′45.1″N, 114°35′15.1″E, depth 14–15 m, on dead corals, SCUBA, 25 Nov. 2018, B. Sirenko leg. ( ZIN, No. 2399) GoogleMaps ; 4 specimens, Da Lon I., 9°59′54.8″N, 113°50′33.8″E, depth 1.5 m, on old shells and dead corals, SCUBA, 11 Dec. 2018, B. Sirenko leg. ( ZIN, No. 2396) GoogleMaps ; 1 specimen, same place, depth 1.5–2.0 m, on old tridacna clam, SCUBA, 12 Dec. 2018, B. Sirenko leg. ( ZIN, No. 2400) ; 2 specimens, Len Dao I., 9°46′37″N, 114°22′34.8″E, depth 9–15 m, on dead corals, SCUBA, 16 May 2019, T. Nguyen Tai leg. ( ZIN, No. 2398) GoogleMaps ; 5 specimens, Toc Tan I., 8°48′27″N, 113°56′04″E, depth 9–10 m, on dead corals, SCUBA, 25 May 2019, T. Nguyen Tai leg. ( ZIN, No. 2397) GoogleMaps ; 1 specimen, Thuyen Chai I., 8°16′35.3″N, 113°21′10.7″E, depth 12–15 m, on dead corals, SCUBA, 29 May 2019, T. Nguyen Tai leg. ( ZIN, No. 2395) GoogleMaps ; 3 specimens, 8°49 ′24.4″N, 113°58′46.9″E, depth 16–18 m, on old tridacna clams and dead corals, SCUBA, 13 Oct. 2020, T. Nguyen Tai leg. ( MVRTC, No. 08) GoogleMaps ; 2 specimens, 8°49′32″N, 113°55′20.6″E, depth 6–7 m, on old tridacna clams, SCUBA, 18 Oct. 2020, T. Nguyen Tai leg. ( MVRTC, No. 05) GoogleMaps .

Measurements. BL 14.5 mm ( 1 specimen; ZIN, No. 2395), 5.0–13.0 mm ( 4 specimens; ZIN, No. 2396), 9.0–15.0 mm ( 5 specimens; ZIN, No. 2397), 8.0 and 11.0 mm ( 2 specimens; ZIN, No. 2398), 4.0 mm ( 1 specimen; ZIN, No. 2400), 7.0 and 12.0 mm ( 2 specimens; MVRTC, No. 05), 8.5–14.0 mm ( 3 specimens; MVRTC, No. 08).

Notes. The examined specimens have the valves of shell, spicules and needles of girdle very similar to those of the type material from the Philippines and Indonesia. The specimen with BL equal to 11 mm has twelve gills arranged from valve IV to valve VII and the radula 4.1 mm long with 23 transverse rows of mature teeth .

Distribution. Amami Islands (Ryukyu Islands, southern Japan), Spratly Islands, Philippines, Indonesia; depth 2– 16 m.

B.I. Sirenko & T. Nguyen Tai. Acanthochitona from the Spratly Islands