Base of last whorl with prominent spiral ridges. Columellar margin of aperture very thick but not reflected over umbilical area (Fig.103).
Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. An adult can lay as many as 1,200 eggs in a year. Since then a great amount of fieldwork has taken place throughout Florida, and many additions to the fauna have come to light. All rights reserved. Amber to milky white in color (Figs. 68).Penis with a single papilla along left margin (Fig. 132).Shell shaggy with numerous spiral fimbriations that are broken into synchronized tufts. 63).Central tooth of radula with basocones located on fore or lateral wing of tooth (Figs. 38).
The massive snails feed on more than 500 species of plants, including agricultural crops. More data based on many population samples from throughout this range will be necessary before the validity of the three forms can be determined.
208, 209), although radial striations may be present on other areas of shell. 17, 29-32), shell usually banded in Florida forms.Moderately large, thick-shelled operculate snails.
A taxonomic revision of the feshwater snails referred to as Elimia curvicostata, and related secies. 197, 204). Length of shell 2.1-2.8 mm (Fig. 159-179).
"The numbers do indicate that we are wining this battle.
Marginal teeth of radula spatulate and bearing 8-10 weakly differentiated cusps.Penny Sprite) Micromenetus floridensis (Baker, 1945).Shell grayish-white. Frequently the shells of ampulariids and viviparids are very similar. Outer lip straight in lateral profiles.
125); accessory crest absent on penis.Shell large, 3.7-4.5 mm long; adults with 4.6-5.3 whorls; lower corner of aperture slightly extended forward as a weak, tongue-like projection (Fig. 90).Aperture widely separated from preceding whorl. 180-193). They have two ocular tentacles that are also black. In parthenogenetic organisms each population is inbred in the strictest genetic sense, and frequently a population will have minor characteristics that distinguish it from others. ©2020 FOX News Network, LLC. 60).Vertical ribs strongly developed, crossed by nearly equal sized spiral threads that form low spines where they cross the ribs, adults about 20-25 mm long (Fig. Sculpture consisting of fine incremental threads, and spiral striations that may become obsolete at maturity. Mal. (Fig.114).Penis with a few simple scattered superior tubercles on outer surface; parapical crest on a low ridge; accessory crest and inferior crest absent (Fig. The systematic relationships of the hydrobiid snail genus Nymphophilus Taylor, 1966 and the status of the Subfamily Nymphophilinae. Base of shell open when viewed from below, showing most of preceding whorl due to curved basal lip (Fig. Sculptured with fine incremental striations and a few fine spiral striations (difficult to distinguish except with transmitted light). 1969. (ed. 75).Shell cylindric-conical with 4.5-5.0 whorls. Some shells may be heavily encrusted with mineral deposit and algae, which may obscure details of the sculpture and color.
Commonly found in St. Augustine grass, they can also be found under rocks, boards, flower pots, greenhouses and even in the hearts of plants such as lettuce or cabbage.
Adult large, about 23-27 mm long (Figs. It is fairly large—about 3–5 cm (1.2–2.0 in) long, and can be found in yards all over Florida where turf-grass is planted.
170). 1918. In some genera, eggs are deposited above the water in dry clusters on stems, trees, walls, etc. 204-207), often eroded in older specimens. 39). 137, 139).Shell cap-shaped or limpet-like with a wide, open aperture forming base of shell (Figs. A review of the recent freshwater limpet snails of North America. The family contains numerous genera and species, some of which are important medically as intermediate hosts for trematode parasites.