Mechanoreceptors and chemoreceptors in pycnogonids (Arthropoda: Pycnogonida)
نویسندگان
چکیده
منابع مشابه
Chemoreceptors and feeding in calanoid copepods (Arthropoda: Crustacea).
Ultrastructural studies of the mouthparts of the calanoid copepod Diaptomus pallidus have revealed the presence of numerous chemoreceptors, and the apparent absence of mechanoreceptors. The setae contain no muscles, and the setules are noncellular extensions of their chitin wall. This allows a new insight into the selective feeding of zooplankters.
متن کاملVagal mechanoreceptors and chemoreceptors in mouse stomach and esophagus.
We used a novel in vitro mouse vagus-gastro-esophageal preparation to study the properties of peripheral vagal afferent endings. We found two types of mechanoreceptive fiber, mucosal receptors and tension receptors. These were distinguished by their sensitivity to mucosal stroking with von Frey hairs and circular tension applied via a claw-cantilever system. A comparison was made with gastro-es...
متن کاملA new species of Hemichela Stock, 1954 from the South China Sea (Arthropoda, Pycnogonida, Ammotheidae)
A new species of pycnogonid collected by the Chinese research vessel, R/V HY IV, during deep sea cruises to the South China Sea in 2013, is described. The new species, Hemichela nanhaiensis, obtained from more than 1300 m depth, is distinguished from the other two species in the genus by the characters of the chela dactylus with 12 denticulations on the inner margin and by the presence of talle...
متن کاملA new species of Austrodecus Hodgson, 1907 (Arthropoda, Pycnogonida, Austrodecidae) from the Southwest Indian Ridge
A new species of pycnogonid collected by the Chinese research vessel R/V Dayangyihao during cruises to the Southwest Indian Ridge in 2008 and 2009 is recorded. The new species, Austrodecus bamberi, is placed into the tristanense-section by the characters of 4-articled ovigers and present auxiliary claws and is distinguished from other species in this section by the number and length of tubercle...
متن کاملPycnogonids
of the body nor are neck wounds more likely to be fatal — even in females and maneless sub-adult males. Instead, the mane appears to indicate 'quality': males may lose their manes after being seriously injured, and dark-maned males have higher testosterone levels, are more likely to recover from physical injury and their offspring have better survival. Thus, mane length indicates recent fightin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Crustacean Biology
سال: 2018
ISSN: 0278-0372,1937-240X
DOI: 10.1093/jcbiol/ruy012