Journal of conchology . \ /^^^ \ // \^-^-. ?1 ? // j^ / ( Ik 1 m del. a. Gill filaments hanging down in mantle chamber. b. Renal chambers. c. Blood spaces. / ) ^) 11 t^\ Above the lamella, in the roof of the mantle, is a chamber traversedby tubes which are lined with projecting cells. This is apparentlythe renal organ. (Text Fig. i).. 304 OK CONCHOLOGY, II, NO. lO, APRIL, I906. On removing the mantle cavity the visceral mass is seen rising as aconical projection behind, while the outline of the buccal mass isclearly visible in front. The visceral mass lies quite freely i
Journal of conchology . \ /^^^ \ // \^-^-. ?1 ? // j^ / ( Ik 1 m del. a. Gill filaments hanging down in mantle chamber. b. Renal chambers. c. Blood spaces. / ) ^) 11 t^\ Above the lamella, in the roof of the mantle, is a chamber traversedby tubes which are lined with projecting cells. This is apparentlythe renal organ. (Text Fig. i).. 304 OK CONCHOLOGY, II, NO. lO, APRIL, I906. On removing the mantle cavity the visceral mass is seen rising as aconical projection behind, while the outline of the buccal mass isclearly visible in front. The visceral mass lies quite freely in thecavity formed by the wings, not touching them at the sides and beingfree for a distance of 5 mm. behind. At that point it is attached tothe foot by a large muscle which enters it medianly. It is yellow incolour and seerns to be composed of the liver, of the hermaphroditegland, which is mixed with the liver in parts, and of the mucousgland, which is opaque, solid and not ramified. The liver is a massof minute ramified tubes and encloses a small round stomach. Thecourse of the intestine is partly visible in the liver, and it terminatesin a low anal papilla situated on the visceral mass, a little to the rightof the median line. The central nervous system is very difficult tosee but is apparently as in Berghs plates of L. antillarum
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Keywords: ., bookauthorconcholo, bookcentury1800, bookdecade1870, bookyear1879
