Chavania striata
Creators: name: Glover, Emily A.
name: Taylor, John D.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Lucinida
Lucinidae
Chavania
Chavania striata

description: Chavania striata (Tokunaga, 1906)
(Figs 34B; 36)
Lucina contraria Dunker, 1882: 215, pl. 13, figs 12-14. (non Lucina contraria Dunker, 1846, a West African species).
Lasaea striata Tokunaga, 1906: 53, 54, pl. 3, fig. 14. Phacoides minutus Thiele, 1930: 592, pl. 4, fig. 72.
Wallucina lamyi Chavan, 1938: 227, fig. 19 (replacement name for L. contraria Dunker, 1882). — Habe 1977: 126, pl. 24, figs 1, 2.
Pillucina (Wallucina) striata – Kuroda et al. 1971: 392, pl. 118, fig. 15.
Wallucina aff. jacksoniensis – Hickman & Barnes 1999: 240, fig. 1a-e.
Chavania striata – Glover & Taylor 2001: 282, fig. 18a-h.
TYPE MATERIAL. — Lasaea striata: 21 syntypes (UMT, CM 13599, CM 13753-1377).
Lucina contraria: Japan, holotype (MNB). Phacoides minutus: Warnbro Sound, western Australia, 3 syntypes (MNB 67727).
TYPE LOCALITY. — C. striata, Oji, Tokyo City (Pleistocene fossil).
MATERIAL EXAMINED. — Koumac. 12 stn, 0-120 m, 117 v, 2 live.
Touho. 3 stn, 0-140 m, 5 v.
Lifou. 2 stn, 4-10 m, 2 v.
ChesterfieldIslands. CHALCAL 1, stn DC 28, 19°24.18’S, 158°31.40’E, 51 m.
CORAIL 2, stn DW 41, 19°21.52’S, 158°31.87’E, 52 m, 2 v. — Stn DW 73, 19°12.11’S, 158°22.57’E, 41 m. — Stn DW 100, 19°05.99’S, 158°26.89’E, 40 m, 20 v. — Stn DW 120, 19°24.97’S, 158°21.59’E, 56 m. — Stn DW 121, 19°25.08’S, 158°18.00’E, 34 m. — Stn DW 122, 19°28.17’S, 158°17.06’E, 32 m. — Stn DW 135, 19°31.37’S, 158°19.14’E, 46 m. — Stn DW 152, 19°52.00’S, 158°20.00’E, 51 m. — Stn DW 212, 34 m, 20++ v.
Other New Caledonia. LAGON, stn 63, Île Ouen, Baie du Prony, 22°26’S, 166°26’E, 20 m, 1 v. — Stn 436, 18°06’S, 162°50’E, Atoll de Huon, 45 m, 1 v. — Stn 438, 18°10’S, 162°51’E, 37 m, 15 v. — Stn 440, 18°05’S, 162°55’E, 39 m, 1 v. — Stn 441, 18°04’S, 162°56’E, 37 m, 1 v. — Stn 442, 18°02’S, 162°56’E, 39 m, 1 v. — Stn 447, Atoll de Surprise, 18°20’S, 163°06’E, 36 m, 2 v. — Stn 452, 18°27’S, 163°12’E, 27 m, 1 v. — Stn 456, 18°29’S, 163°06’E, 73 m, 1 v. — Stn 454, 18°30’S, 163°10’E, 36 m, 1 v. — Stn 466, 18°24’S, 163°07’E, 42 m, 1 v. — Stn 468, 18°27’S, 163°10’E, 40 m, 1 v. — Stn 478, lagon Nord, 18°53’S, 163°27’E, 35 m, 1 v. — Stn 564, Grand Récif Sud, 22°47’S, 166°56’E, 35 m, 1 v. — Stn 589, Île des Pins, 22°32’S, 167°23’E, 31 m, 1 v. — Stn 595, 22°33’S, 166°21’E, 37 m, 1 v. — Stn 729, secteur de Canala, 21°19’S, 165°54’E, 42 m, 1 v. — Stn 922, secteur de Koumac, 20°51’S, 164°24’E, 12 m, 1 v. — Stn 962, secteur de Poum, 20°27’S, 164°01’E, 25 m, 1 v. — Stn 1103, secteur des Belep, 19°43’S, 163°57’E, 32 m, 6 v. — Stn 1107, 19°41’S, 163°50’E, 41 m, 1 v.
PALEO-SURPRISE, stn CP 1380, North New Caledonia, 18°27’S, 163°13’E, 24 m, 2 v. — Stn CP 1377, 18°27’S, 163°10’E, 36 m, 1 v.
Loyalty Islands. MUSORSTOM 6, stn DW 431, 20°21’S, 166°07’E, 21 m, 1 v. — Stn DW 433, 20°22’S, 166°10’E, 24 m, 1 v. — Stn DW 435, 20°21’S, 166°09’E, 32 m, 2 v. — Stn 1219, Lagon d’Ouvéa, 20°29’S, 166°29’E, 15 m, 1 v.
DISTRIBUTION. — Central IWP, India to Japan, western and northern Australia, Marshall Islands, New Caledonia (Glover & Taylor 2001: fig. 21).
DESCRIPTION
Shell small, white or cream, H to 12 mm, subcircular, but shape variable (mean H/L 1.02), posterior margin often truncate. Protoconch 125 µm long (Fig. 36K), PI large, smooth, PII, a narrow rim. Sculpture of fine, low, closely spaced, commarginal lamellae which occasionally intersect and divide; lamellae slightly higher on posterior dorsal margin. Fine radial riblets sometimes visible on anterior ventral margin. Posterior dorsal area demarcated by a narrow sulcus. Lunule heart-shaped and impressed. Hinge plate narrow, RV with single cardinal tooth, elongate posterior lateral tooth and no anterior lateral. LV with two cardinal teeth, an elongate posterior lateral tooth and no defined anterior lateral although there is sometimes a vestigial ridge in that position. Ligament internal, short, deeply inset laterally into valves. Anterior adductor scar short, rounded and detached from pallial line for about 1/5 of its length. Pallial line discontinuous, divided into small blocks. Inner shell margin finely crenulate.
description: Published as part of Glover, Emily A. & Taylor, John D., 2007, Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou, pp. 109-181 in Zoosystema 29 (1) on pages 162-166, DOI: 10.5281/zenodo.5392295