Zum Nachweis von Phosphor

Alpers, K.; Heiduschka, A.

doi:10.1007/bf01554310

Cited by 1 publication

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“…I n other Toxoglossa the venom has a powerful neurotoxic action and that of Mangelia is probably similar but the prey in unknown. As shown by Alpers (1931) and Kohn (1956Kohn ( , 1959 Conus spp. swallow the prey whole, and since the injecting mechanism in Mangelia is powerful and its store of venom large it is possible that its prey is limited by what is available in the environment and the extent of accommodation afforded by its gut.…”

Section: Discussionmentioning

confidence: 79%

“…The disposition of these organs is similar to that described for Conus vicarius (Amaudrut, 1898), and for C. tupila and C. textile by Shaw (1914) except that in the last two species the salivary glands form a single mass provided with two ducts. It has been suggested, however (Alpers, 1931), that the proboscis of the Toxoglossa is not protrusible, and that the exposure of the oral disc is achieved by retraction of the sheath and even part of the proboscis wall, so that the buccal tube is everted and a ' mouth ' formed at the level where radular sac, poison gland…”

Section: Discussionmentioning

confidence: 99%

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OBSERVATIONS ON THE TOXOGLOSSAN GASTROPOD MANGELIA BRACHYSTOMA (PHILIPPI)

Robinson

1960

Proceedings of the Zoological Society of London

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The proboscis of Mangelia is a highly specialized and modified organ involving a terminal sucker and an additional permanent sheath within the proboscis sac which has been named the supporting sheath. Its structure can be derived from the condition seen in the Conidae by supposing that the folds formed during the retraction of the proboscis in these animals become lengthened to form one single permanent fold in Mangelia. The anterior part of the alimentary canal and the organs associated with it are similar to those found in the Conidae, and include a highly coiled poison gland which opens ventrally into the oesophagus immediately posterior to the opening of the buccal sac. It is pointed out that the poison gland is the coiled tube and that the swollen proximal end of the gland is a non‐glandular propulsive organ, the muscular bulb, and that the true poison gland duct is a short distal passage joining the tubular gland to the buccal cavity. The frequently stated belief that the poison gland is derived from the gland of Leiblein is discussed and the possibility that it represents the ventral salivary glands is mentioned. The absence of a pedal sucker and of the ventral pedal gland is noted. The genital ducts are described and found to conform to the general plan seen in the Stenogloasa.

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Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 99%