Then, microorganisms get stuck in the web, and the snails use their mouths to pull the web back in and strain the food through barbs on their tongues called radulae
in order to eat.
Although numerous papers have described the morphology of radulae
in adults, changes in the morphology of the radula during development from postlarvae to adult have only been published on other vetigastropods (Waren 1990, Geiger et al.
Specimens collected in the field and obtained from Stellar Biotechnologies at body sizes ranging from <1 mm to 12 cm were dissected and radulae
were processed for scanning electron microscopy (SEM).
Scanning electron microscopy under a Phillips XL 30 was used to study the radulae
, with the usual coating, at the Laboratorio de Microscopia Eletronica, Museu de Zoologia da USP, and Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" (MACN).
Here we present new codable morphological characters of two genera in the Solenogastres family Dondersiidae (see Table 2), both for body shape and isolated hard parts--sclerites, radulae
, and copulatory spicules--and for internal anatomic characters, particularly those broadly applicable to Solenogastres.
measure one third of the specimen's length, comprising between 26 to 31 rows of mature teeth and the major lateral teeth mineralized, another 8 to 11 rows of teeth in formation.
Feeding patterns of Fissurella species on Isla de Margarita, Venezuela: use of radulae
and food passage rates.
It was resolved to some extent by McLean's synonymy which recognized 13 species from a previous total of 58 names based on characters of the shells, epipodium, and in some cases radulae
, complemented by data on their geographic distributions.
of Truncatella from Japan (Gastropoda).
Given this, it is expected that smaller individuals would have disproportionally longer radulae
than larger snails.
examined have a hook-shaped innermost lateral tooth in each half-row, with a short, triangular cusp and a secondary cusp mid-length (Figure 3).
were obtained by maceration of the buccal mass in 5% KOH at 60[degrees]C until the soft tissue appeared dissolved, after which the radula was rinsed with distilled water.