Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Colin O. Hermans"'
Publikováno v:
The Biological Bulletin. 237:36-47
The pteropod mollusc Clione limacina is a feeding specialist, preying on shelled pteropods of the genus Limacina. Specialized prey-capture structures, called buccal cones, are hydraulically everted from within the mouth to capture the prey. Once capt
Publikováno v:
The Biological bulletin. 237(1)
The pteropod mollusc
Autor:
Colin O. Hermans
Publikováno v:
Science. 280:499-499
In her article “Mother tongues trace steps of earliest Americans” (AAAS Meeting, 27 Feb., [p. 1306][1]), Ann Gibbons reviews linguistic evidence that the Americas were populated by humans long before the generally accepted date of roughly 11,000
Autor:
R. B. Clark, Colin O. Hermans
Publikováno v:
Journal of Zoology. 178:147-159
The opheliids Amniotrypane and Armundiu have very small parapodia bearing few chaetae, and these are pressed back against the body when the animals swim; the archiannelid Polygordius lacks parapodia and chaetae. All three worms have smooth bodies and
Autor:
Linda A. Thomas, Colin O. Hermans
Publikováno v:
The Biological Bulletin. 169:675-688
The tube feet of Leptasterias hexactis adhere to and release from substrata by chemical interactions. In our laboratory these podia adhered to substrata coated with the ubiquetous anionic saccharide films produced by marine bacteria. Podia also attac
Autor:
Richard M. Eakin, Colin O. Hermans
Publikováno v:
Zeitschrift f�r Zellforschung und Mikroskopische Anatomie. 100:325-339
The brain ofPhascolosoma agassizii, a sipunculid worm, contains a pair of ocelli. Each ocellus lies at the inner end of the ocular tube, an invagination that connects the concavity of the ocellus with the anterior surface of the head. The cuticle whi
Autor:
Colin O. Hermans
Publikováno v:
Journal of Ultrastructure Research. 30:255-261
Collagen fibrils in the brain sheath of a marine, polychaetous annelid, Armandia brevis , were measured to have a periodicity near that normally found in vertebrate collagen and markedly different from periodicities measured in collagen of an oligoch
Autor:
Colin O. Hermans
Publikováno v:
Zeitschrift f�r Zellforschung und Mikroskopische Anatomie. 96:361-371
Armandia brevis responds negatively to light during the benthic phase and positively to light during the epitokous phase of its life history. In addition to the prostomial photoreceptors this slender translucent marine worm possesses eleven pairs of
Autor:
Colin O. Hermans, Richard A. Cloney
Publikováno v:
Zeitschrift fur Zellforschung und mikroskopische Anatomie (Vienna, Austria : 1948). 72(4)
Embedded in the brain of Armandia brevis are three prostomial ocelli, each composed of two cells. The pigment cell, surrounds a photoreceptor, and forms a pigmented cup and a transparent unpigmented diaphragm. The terminal part of the photoreceptor l