Posted: Aug 15 2011

Echinolittorina mespillum (Mühlfeld, 1824) Brown Periwinkle

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                                                     Florida Echinolittorina (subgenus Fossarilittorina)
                                                                          by Marlo F. Krisberg
                                                                                 August 2011

My classification and treatment relies upon the following monograph:

 

Reid, D.G., 2009. The genus Echinolittorina Habe, 1956 (Gastropoda: Littorinidae) in the western Atlantic Ocean. Zootaxa 2184: 1-103. Aug. 6.

 

Dr. Reid has grouped the 10 known living Littorinids in the western Atlantic within the genus Echinolittorina and, within the genus, separated the 10 into four subgenera as follows:

 

Fossarilittorina Rosewater, 1981   

     E. meleagris (Beck in Potiez & Michaud, 1838)     

     E. mespillum (Mühlfeld, 1824)

Lineolittorina Reid, 2009 (new subgenus)   

     E. lineolata (d'Orbigny, 1840)

Amerolittorina Reid, 2009 (new subgenus)   

     E. ziczac (Gmelin, 1791)   

     E. jamaicensis (C. B. Adams, 1850)   

     E. interrupta (C. B. Adams in Philippi, 1847)   

     E. placida Reid, 2009 (new species) 

     E. angustior (Mörch, 1876)

Echinolittorina Habe, 1956     

     E. tuberculata (Menke, 1828) 

     E. vermeiji (Bandel & Kadolsky, 1982)

Adjacent photo courtesy Jaxshells.  In splash pool, S. edge of West Sister Rock, just S.W. of Vaca Key, Monroe Co., FL (5-6 mm.)

Phil Poland photograph