Each stylet is composed of a centrally located organic matrix surrounded by an inorganic cortex that contains calcium and phosphorus. When viewed at high magnifications, fine granules can be seen throughout the organic matrix, and the cortex appears to be composed of densely packed homo-geneous ...
This similarity in morphology suggests that the organic matrix serves as a template during calcification of the stylet. The fact that abundant material can be seen in the core of incinerated stylets, and in the central region of stylets that had been soaked for several hours in sodium ...
The meaning of PALAEONEMERTEA is an order of nemertean worms (class Anopla) that have two layers of body-wall musculature, a proboscis without a stylet, and a brain that is not divided into lobes.
Among others, traits that distinguish this new species from other previously described congeneric species include: presence of two gonad rows on each side of the intestine, a simple (not decorated) mucus sheath, and a relatively wide stylet basis. Maximum likelihood and Bayesian inference ...
Among others, traits that distinguish this new species from other previously described congeneric species include: presence of two gonad rows on each side of the intestine, a simple (not decorated) mucus sheath, and a relatively wide stylet basis. Maximum likelihood and Bayesian inference ...
body-wall musculaturestylet18S rDNA28S rDNAHistone H3phalloidinThe Childiidae sensuD枚rjes 1968 comprises the acoel worms characterized by a cone-shaped ... YI Tekle,OI Raikova,A Ahmadzadeh,... - 《Journal of Zoological Systematics & Evolutionary Research》 被引量: 22发表: 2005年 加载更多来...
The nemertean Paranemertes peregrina captures prey by using an eversible proboscis that is armed with a stylet apparatus. The apparatus consists of several reserve stylet sacs and a central stylet that is attached to a granular mass, called the basis. When the proboscis is everted, the central...
The ultrastructure of cellular organelles involved in stylet formation is examined in six species of nemertean worms by transmission electron microscopy (TEM). Stylets are nail-shaped structures containing calcium phosphate that are assembled intracellularly in large uninucleate cells, called styletocytes....
It differs from the single species of genus Psammamphiporus, P. elongatus, in being without a frontal organ and cephalic furrows, the stylet basis being conical rather than cylindrical.doi:CNKI:SUN:HYFW.0.1995-03-013孙世春SUNShi-chunof
nov., is described. It differs from the single species of genus Psammamphiporus, P. elongatus, in being without a frontal organ and cephalic furrows, the stylet basis being conical rather than cylindrical.中国海洋湖沼学报:英文版孙世春