. Transactions and proceedings of the New Zealand Institute . the stomach, receiving the hepatic duct atthe bend; it then turns to the left, over the aorta, and crosses to the leftside below the stomach. It then passes to the posterior end of the bodycavity by two spiral curves, made with the sun, and passes forward againby two more curves in the opposite direction until it reaches the first turnof the duodenum, whence it passes straight to the anus. (PI. VI., ) Reproductive organs. The ovotestis is small, round, pale purple, andhidden under the liver. The albumen gland is rather large, wi
. Transactions and proceedings of the New Zealand Institute . the stomach, receiving the hepatic duct atthe bend; it then turns to the left, over the aorta, and crosses to the leftside below the stomach. It then passes to the posterior end of the bodycavity by two spiral curves, made with the sun, and passes forward againby two more curves in the opposite direction until it reaches the first turnof the duodenum, whence it passes straight to the anus. (PI. VI., ) Reproductive organs. The ovotestis is small, round, pale purple, andhidden under the liver. The albumen gland is rather large, with crenatedmargins. The penis sac is long and narrow; the retractor muscle isattached to the middle. The spermatheca is oval, with a short neck. Thereis no prostate, but a large two-lobed accessory gland opens into the com-mon genital opening by numerous small convoluted tubes. (PI. VI., ) Aeion incommodus. Alimentary canal. The intestine passes backwardfrom the stomach and then, some distance from the hepatic ducts, turns [Pi:VL. gmpi^.^d: To Ulicfirale Paper ii/ Frofsjisaj^MnUm, HuTTON.—Contributions to New Zealand Malacology. SOl forward and to the right. It then passes diagonally over the stomach tothe left, and then diagonally to the right round the aorta. It then proceedsbackward for a short distance, as far as the pylorus, and turns sharply tothe right and forward to the anus. (PI. VI., ) Reproductive organs. The ovotestis is small, round, and dark lies on the liver behind the last turn of the intestine. The albumengland is very large, with a smooth outline. The spermatheca is pinkish,oval, and with a long neck. The oviduct swells out before opening into thecommon genital orifice. The penis sac is long and narrow, and lies justunder the pulmonary chamber, the retractor muscle is attached at theanterior end. There is no prostate gland. ONcmDELLA NiGEicANS. The Ungual teeth are arranged in transverserows which form an acute angl
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