. Bulletin of the Natural History Museum Zoology. ANATOMY AND SYSTEMATICS OF CARDIOLUC1NA 111. Fig. 21 Cardiolucina semperiana (Issel, 1869). Figure a-b Paralectotype of Lucinapisum Reeve, 1850 BMNH 1963552, Singapore and c-d Holotype of Dentilucina (Bellucina) macassari Prashad, 1932, Makassar, Indonesia, ZMA. a, exterior of right valve; b, interior of left valve; c, exterior of right valve; d, interior of left valve with attempted drill hole on the posterior part of the umbo. Scale bars a-d = which the anterior is the smaller. Right valve with single posterior and anterior laterals an
. Bulletin of the Natural History Museum Zoology. ANATOMY AND SYSTEMATICS OF CARDIOLUC1NA 111. Fig. 21 Cardiolucina semperiana (Issel, 1869). Figure a-b Paralectotype of Lucinapisum Reeve, 1850 BMNH 1963552, Singapore and c-d Holotype of Dentilucina (Bellucina) macassari Prashad, 1932, Makassar, Indonesia, ZMA. a, exterior of right valve; b, interior of left valve; c, exterior of right valve; d, interior of left valve with attempted drill hole on the posterior part of the umbo. Scale bars a-d = which the anterior is the smaller. Right valve with single posterior and anterior laterals and two cardinals, the posterior being the larger. Cardinal teeth have small denticles. Ligament extends two thirds of the distance from the beak to the posterior lateral tooth. Inner margin with 20-21 crenulations and there are also small, rounded denticles along anterodorsal and posterodorsal margins. Both anterior and posterior shell margins have shallow sinuses corresponding to the sulcii. Anterior adductor muscle scar elongate, buttressed in the more tumid specimens, detached from the pallial line only at the ventral tip. Small pedal retractor muscle scar at dorsal tip of anterior adductor scar. Posterior adductor muscle scar ovate. Pallial line continuous. Shell creamy white. ANATOMY. (Fig. 22 ) Posterior inhalant aperture absent, exhalant aperture a small inverted tube. Ctenidia large and thick, inner demibranchs only, with a thin, shallow, ventral food groove. Gill filaments long and broad, with large central space crossed by transverse muscle strands (Fig. 22 c). Bacteriocyte zone packed with ovoid bacteria about urn in length (Fig. 22 d). Labial palps consist of small papilla at edge of lips. Foot cylindrical, vermiform, with a much-corrugated outer surface, a pointed tip and a small rounded heel to the posterior. Ctenidia attached to posterior mantle by a thin muscular sheet (Fig. 22 0- Body wall with a large irregular visceral pouch in the antero-ventral posit
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Keywords: ., bhlconsortium, bookc, bookcentury1900, bookcollectionbiodiversity
