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Radula

SEXUAL DIMORPHISM IN THE RADULA OF PISANIA PUSIO (LINNAEUS ...

SEXUAL DIMORPHISM IN THE RADULA OF PISANIA PUSIO (LINNAEUS, 1758) (MOLLUSCA, GASTROPODA, BUCCINIDAE) ABSTRACT Pisania pusio (Linnaeus, 1758) is an inhabitant of the intertidal zone, being generally found under the rocks during the low tide.

RELATIONS BETWEEN SHELL SIZE AND RADULA SIZE IN MARINE ...

RELATIONS BETWEEN SHELL SIZE AND RADULA SIZE IN MARINE PROSOBRANCHS (MOLLUSCA: GASTROPODA) ABSTRACT The Gastropoda presents the highest adaptative radiation among the mollusks.

CHARACTERISTICS (TYPICAL FIGURES)

AGIP RADULA Eni S.p.A. Divisione Refining & Marketing Via Laurentina 449, 00142 Roma Tel. centralino +39 06 5988.1 www.eni.it [IN344.05.03] Page 1 of 1 PRODUCT DATA SHEET

Molluscan Research

A previous study of radula production, using a variety of techniques including cold-shocking, found that radula turnover rates of 15 prosobranch and pulmonate species varied from 1 to 6.4 tooth rows per day (Isarankura and Runham 1968).

RADULAR KINETICS DURING GRAZING IN HELISOMA TRIVOLVIS ...

Kinetics of gastropod radula 99 excavate five shorter troughs, their size being proportional to the size of the proximal thickness of the cartilage, for example 5 units long (Fig. 5B).

Form and function of radular teeth ofherbivorous molluscs ...

Although the radula is one ofthe features characterizing herbivorous molluscs, we know surprisingly little about the ecology and evolution ofform and function ofthis important structure.

Phylum Mollusca 1

most molluscs have a radula which is a unique rasping organ used for scraping off food materials (bivalves do not possess a radula) 7. most molluscs have a well-developed head (except for the bivalves and scaphopods)

NEURAL CONTROL OF THE BUCCAL MUSCLE MOVEMENT

All these neurones fired during the radula retraction phase of rhythmic buccal activity. Neurones Bl, B2, B4 and B5 made direct excitatory connections to the radula retractor, and Bl, B2, B3 and B5 also made direct excitatory connections with the outer muscle of the buccal mass.

Phylum Mollusca

Class Bivalvia •clams, mussels, oysters, scallops •use gills for respiration and filter feeding •shell is modified into a bivalvedshell connected by muscles and ligaments •no head (reduced sensory organs), no radula •foot can be modified for digging dorsal umbo-the oldest part of the shell ridges ...

Trace Metals in the Tissues and Shells of Tympanotonus ...

European Journal of Scientific Research ISSN 1450-216X Vol.24 No.4 (2008), pp.468-476 © EuroJournals Publishing, Inc. 2008 http://www.eurojournals.com/ejsr.htm Trace Metals in the Tissues and Shells of Tympanotonus Fuscatus var. Radula from the Mangrove Swamps of the Bukuma Oil Field, Niger ...