𝔖 Bobbio Scriptorium
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The manipulation of the nematocysts of pennaria tiarella by Aeolis pilata

✍ Scribed by William Allison Kepner

Publisher
John Wiley and Sons
Year
1943
Tongue
English
Weight
839 KB
Volume
73
Category
Article
ISSN
0362-2525

No coin nor oath required. For personal study only.

✦ Synopsis

ONE PLATE (EIGHT FIGURES)

' I am indebted to Hon. J o h n R. Ga'rdner, Acting Commissioner of Fisheries, for the use of space in the Fisheries Laboratory at Beaufort, North Carolina, and to Dr. H. F. Prytherch, Director of the laboratory, for aid. A fund from the General Education Board made possible my working at Beaufo'rt.

πŸ“œ SIMILAR VOLUMES

The ontogeny of interstitial cells in Pe
The ontogeny of interstitial cells in Pennaria tiarella
✍ Robert G. Summers; Julian F. Haynes πŸ“‚ Article πŸ“… 1969 πŸ› John Wiley and Sons 🌐 English βš– 524 KB

The interstitial cells of Pennaria tiarella differentiate exclusively froin the central endodcrm of the planula. Shortly after thcir appearance, most of the interstitial cells become cnidoblasts. Subsequently, as the larva transforms into a polyp, both cnidoblasts and interstitial cells migrate from

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The role in food capture of the nematocysts on the mform and capitate tentacles of Pennaria tiarella is discussed. The feeding response of Pennaria tiarella to Artemia extracts consists of cone bending and mouth opening. A similar feeding response has been demonstrated to be induced by proline at co

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Moderate dilutions of sea water have been shown to increase the rate of regeneration in certain marine invertebrates (Loeb, '92 ; Snyder, '05 ; Goldfarb, '07, '14 ; Child, '07 ; Peebles, '08, and Lloyd, '14). Sayles ( '28) found that dilution of the body fluids was an important factor in regenerativ

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The fine structure of the spermatozoon of Pennaria tiarella (coelenterata)
✍ Robert G. Summers πŸ“‚ Article πŸ“… 1970 πŸ› John Wiley and Sons 🌐 English βš– 890 KB

## Abstract Spermatozoa of the hydroid __Pennaria tiarella__ were examined with the electron microscope. The anterior region is characterized by the presence of 30–40 membrane‐bounded vesicles which lie anterior to the nucleus. These vesicles are apparently derived from the Golgi apparatus. The nu

Nerve elements in the planula of the hyd
Nerve elements in the planula of the hydrozoan Pennaria tiarella
✍ Vicki Joan Martin; Mary Beth Thomas πŸ“‚ Article πŸ“… 1980 πŸ› John Wiley and Sons 🌐 English βš– 977 KB

## Abstract The nerve elements described by light microscopy for the hydrozoan planula have not previously been identified ultrastructurally. This electron microscopic study confirms the presence of two distinct nerve cell types in the planula of the hydroid __Pennaria tiarella__. Type I nerve cell