Chavania Glover & Taylor, 2001

Glover, Emily A. & Taylor, John D., 2007, Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou, Zoosystema 29 (1), pp. 109-181 : 162-166

publication ID	https://doi.org/ 10.5281/zenodo.5392295
persistent identifier	https://treatment.plazi.org/id/039087F4-FFF4-6A1B-11CA-FCA1FE14D6C6
treatment provided by	Marcus
scientific name	Chavania Glover & Taylor, 2001
status

Treatment

Genus Chavania Glover & Taylor, 2001 View in CoL

Chavania Glover & Taylor, 2001: 282 View in CoL .

TYPE SPECIES. — Lucina erythraea Issel, 1869 (original designation).

DIAGNOSIS. — Shells small, robust, H to 12 mm. Outline generally circular to slightly higher than long but variable. Sculpture of fine, closely-spaced, low commarginal lamellae that anastomose occasionally; fine riblets sometimes visible on anterior and posterior of shell and also fine radial striations visible within the outer shell layer. Shallow posterior sulcus present on both valves. RV with large projecting tooth and LV with two cardinal teeth, of which the anterior is larger. Anterior lateral teeth absent or vestigial ridge in both valves. Ligament internal, short, deeply inset laterally into valves. Anterior adductor scar short, rounded and detached from pallial line for about 1/5 to 1/3 of length. Pallial line discontinuous. Shell margin broad, thickened, inner margin finely crenulate.

Chavania striata ( Tokunaga, 1906) View in CoL ( Figs 34B View FIG ; 36 View FIG )

Lucina contraria Dunker, 1882: 215 View in CoL , pl. 13, figs 12-14. (non Lucina contraria Dunker, 1846 View in CoL , a West African species).

Lasaea striata Tokunaga, 1906: 53 , 54, pl. 3, fig. 14. Phacoides minutus Thiele, 1930: 592 View in CoL , pl. 4, fig. 72.

Wallucina lamyi Chavan, 1938: 227 View in CoL , fig. 19 (replacement name for L. contraria Dunker, 1882 View in CoL ). — Habe 1977: 126, pl. 24, figs 1, 2.

Pillucina (Wallucina) striata – Kuroda et al. 1971: 392, pl. 118, fig. 15.

Wallucina aff. jacksoniensis View in CoL – Hickman & Barnes 1999: 240, fig. 1a-e.

Chavania striata View in CoL – 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 View FIG ), 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.

CM	Chongqing Museum

Copyright notice

No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.

Taxonomy

Kingdom	Animalia
Phylum	Mollusca
Class	Bivalvia
Order	Lucinida
Family	Lucinidae