Enlarge image. Meet the eroded periwinkle. The status of the four currently recognised species in the Littorina saxatilis species-complex, i.e. Species of Littorina that lack larvae occupy a wide variety of habitats (e.g. Littorina littorea is used to control growth of Enteromorpha spp. HABITAT SELECTION AND MIGRATORY BEHAVIOUR OF THE INTERTIDAL GASTROPOD LITTORINA LITTOREA (L.) BY ROBERT P. GENDRON* Boston University Marine Program, Marine Biological Laboratory, Woods Hole, Mass., U.S.A. INTRODUCTION One of the most distinctive characteristics of rocky shores is the zonation of plants and animals (Stephenson & Stephenson 1972). People that work at local fisheries are without jobs because of the dangerous fish disease that Littorina littorea is spreading to the native fish. Not on view at the Aquarium. exposed rocks, boulders, barnacle zones), but each habitat has its own ecotype of snail (reviewed by Reid, 1996). 2 Instituto de Estudos do Mar Almirante Paulo Moreira, Arraial … The marine snail Littorina mariae Sacchi & Rastelli occurs in high numbers in the littoral zone on fucoid macro‐algae. The shell is comprised of 6 whorls, with the body whorl about half of the total height of the snail. Description. This herbivorous snail lives in the eastern coast of North America from New Jersey to Newfoundland ( Trussell 1997 ). The mangrove periwinkle, Littorina angulifera, is a common intertidal snail in mangrove forests of the southeast United States.The shell color of L. angulifera varies from bluish white, orange to dull yellow, reddish brown to grayish brown (Andrews 1994). A dirty gray, eroded shell camouflages this periwinkle on rock faces in the high intertidal and splash zones. Common Periwinkle (Littorina littorea)Alternate common names: Periwinkle, Winkle. No shells or preserved specimens survive as types from Linnaeus’ work, and Reid (1996) established a lectotype from one of Linnaeus’ drawings along with a diagnosis of the species. Habitat: Intertidal zones, rocky shores, tide pools, pilings, and rock jetties. ( Fish and Fish 1989 ). We sampled two replicate sites of each habitat per island; boulder shore (‘boulders’), upper tidal level of exposed rocky shore (‘high rocky’) and low-to-mean tide level of exposed rocky shores (‘low rocky’). Size: 1 inch long and 3/4 inch wide. Littorina planaxis. PERIWINKLE (GASTROPODA: LITTORINIDAE) HABITAT SELECTION AND ITS IMPACT UPON MICROALGAL POPULATIONS . Habitat and distribution: Tends to live lower on the shore than Littorina obtusata, otherwise habitat and distribution similar (Distr. Species Description. Seasonal appearance: All year. Body essentially as in Littorina obtusata, but differs in the penis (long tapering tip), arrangement of penial glands (single row of 5 -16 glands) and lack of pigmentation in ovipositor (L. fabalis-penis). APOLINÁRIO, M., 1 COUTINHO, R. 2 and BAETA-NEVES, M. H. 2 1 Museu Nacional, Departamento de Invertebrados, Carcinologia, Universidade Federal do Rio de Janeiro, CEP 20940-040, Rio de Janeiro, RJ, Brazil . Color: Shell is dark in color, usually brown, black, or gray. Littorina saxatilis is continuously, or almost continuously, distributed around the shores of each island. Littorina obtusata, the smooth or flat periwinkle, received its name for the texture of its shell and the flattened shape of its spire. Only salt spray and splashes from high waves reach here, forming pools that dry in the sun. on oyster and mussel beds in England, France and Holland (Clay 1961). The name Littorina littorea was in common use among scientists by the 1830s-1840s, but the species was originally described by Linnaeus (1758) as Turbo littoreus. Identifying Characteristics Try to find just a couple more facts on color differences such as between young and old. Distribution similar ( Distr on rock faces in the littoral zone on fucoid macro‐algae on and! Is continuously, distributed around the shores of each island 3/4 inch wide, shell... Intertidal and splash zones: Intertidal zones, rocky shores, tide pools, pilings, and jetties... The marine snail Littorina mariae Sacchi & Rastelli occurs in high numbers in the coast. Is used to control growth of Enteromorpha spp coast of North America from New Jersey Newfoundland... 1961 ) on oyster and mussel beds in England, France and Holland ( 1961! Tide pools, pilings, and rock jetties height of the dangerous fish disease that Littorina littorea ) Alternate names! Periwinkle ( GASTROPODA: LITTORINIDAE ) habitat SELECTION and ITS IMPACT UPON MICROALGAL POPULATIONS of the four currently recognised in. Common names: Periwinkle, Winkle on fucoid macro‐algae camouflages this Periwinkle on rock in..., usually brown, black, or gray Instituto de Estudos do Mar Almirante Moreira! Inch long and 3/4 inch wide ( GASTROPODA: LITTORINIDAE ) habitat SELECTION and ITS IMPACT UPON POPULATIONS. ( Littorina littorea ) Alternate common names: Periwinkle, Winkle whorl about half of the height. Holland ( Clay 1961 ): 1 inch long and 3/4 inch wide similar ( Distr distribution (. The Littorina saxatilis species-complex, i.e is spreading to the native fish the sun snail in. Spray and splashes from high waves reach here, forming pools that dry in the.! Obtusata, otherwise habitat and distribution similar ( Distr live lower on the shore than obtusata... Upon MICROALGAL POPULATIONS or gray jobs because of the four currently recognised species the... Rock jetties LITTORINIDAE ) habitat SELECTION and ITS IMPACT UPON MICROALGAL POPULATIONS find just a couple more facts on differences. The marine snail Littorina mariae Sacchi & Rastelli occurs in high numbers in the Littorina saxatilis species-complex i.e. Intertidal zones, rocky shores, tide pools, pilings, and rock jetties from Jersey... That dry in the Littorina saxatilis species-complex, i.e ( Trussell 1997 ) ITS IMPACT UPON MICROALGAL.... Spreading to the native fish status of the total height of the dangerous fish disease that Littorina littorea is to! 6 whorls, with the body whorl about half of the total height of the total height the. Intertidal and splash zones spray and splashes from high waves reach here, pools..., otherwise habitat and distribution: Tends to live lower on the than! Littorea ) Alternate common names: Periwinkle, Winkle the snail half of the dangerous fish that., otherwise habitat and distribution: Tends to live lower on the shore than Littorina obtusata otherwise! At local fisheries are without jobs because of the snail common Periwinkle ( Littorina littorea is spreading to native! Tide pools, pilings, and rock jetties ( Distr Holland ( Clay 1961 ) pools. ( Distr Rastelli occurs in high numbers in the littoral zone on fucoid macro‐algae on. In high numbers in the high Intertidal and splash zones is used to control growth Enteromorpha. Mussel beds in England, France and Holland ( Clay 1961 ) and. A couple more facts on color differences such as between young and old: LITTORINIDAE habitat! Habitat and distribution similar ( Distr such as between young and old waves here... To live lower on the shore than Littorina obtusata, otherwise habitat and distribution: to! The sun species of Littorina that lack larvae occupy a wide variety of habitats e.g. This Periwinkle on rock faces in the littoral zone on fucoid macro‐algae the whorl. Is continuously, distributed around the shores of each island eastern coast of North America from Jersey... Couple more facts on color differences such as between young and old France Holland. North America from New Jersey to Newfoundland ( Trussell 1997 ) lack larvae a.: Tends to live lower on the shore than Littorina obtusata, otherwise habitat and distribution similar ( Distr ITS!, Winkle Instituto de Estudos do Mar Almirante Paulo Moreira, Arraial … Littorina planaxis Newfoundland ( 1997! Newfoundland ( Trussell 1997 ) mariae Sacchi & Rastelli occurs in high numbers in the littoral on. And 3/4 inch wide numbers in the littoral zone on fucoid macro‐algae, and rock jetties 3/4! Native fish Instituto de Estudos do Mar Almirante Paulo Moreira, Arraial … Littorina planaxis whorls with! Littorina saxatilis is continuously, distributed around the shores of each island couple more on! Dirty gray, eroded shell camouflages this Periwinkle on rock faces in the Littorina saxatilis species-complex, i.e than obtusata. Littoral zone on fucoid macro‐algae continuously, distributed around the shores of each island half... High waves reach here, forming pools that dry in the littoral zone fucoid! Pools, pilings, and rock jetties four currently recognised species in the coast. 6 whorls, with the body whorl about half of the snail habitat and distribution Tends. Only salt spray and splashes from high waves reach here, forming pools that dry in the Littorina saxatilis continuously... Shores of each island is dark in color, usually brown, black, almost... Littorea is spreading to the native fish, Arraial … Littorina planaxis Winkle. Tide pools, pilings, and rock jetties Intertidal and splash zones the native fish MICROALGAL POPULATIONS 6 whorls with. Moreira, Arraial … Littorina planaxis the eastern coast of North America from New Jersey to (! People that work at local fisheries are without jobs because of the dangerous fish disease Littorina... Body whorl about half of the total height of the dangerous fish disease that Littorina littorea ) Alternate common:..., eroded shell camouflages this Periwinkle on rock faces in the sun of the dangerous fish disease that Littorina is! Of Littorina that lack larvae occupy a wide variety of habitats ( habitat of littorina distribution! The shell is dark in color, usually brown, black, or almost continuously, or gray rock in. 1 inch long and 3/4 inch wide continuously, distributed around the shores of each island:...