A new species of Chthamalus (Crustacea: Cirripedia) characterized by enzyme electrophoresis and shell morphology: with a revision of other species of Chthamalus from the western shores of the atlantic ocean

Chthamalus proteus sp. nov. is described as a distinct species based on its clear separation by starch-gel electrophoresis of enzymes. A redescription is given of C. fragilis, a related species, which differs absolutely from C. proteus in 3 out of 16 enzymes. Given the distinction of C. proteus from C. fragilis by enzyme methods, it has been possible to devise morphological criteria, involving simple measurement of the opercular valves and first maxilla, which can separate the two species in 99% of individuals. Although the morphological characters overlap slightly, the enzyme results show no evidence of hybridization. A species previously confused with C. proteus, C. bisinuatus from Brazil, differs considerably in morphology and is briefly redescribed.

[1]  C. Hedgecock.  Biochemical genetic variation and evidence of speciation in Chthamalus barnacles of the tropical eastern Pacific Ocean , 1979 .

[2]  A. Crisp,et al.  Enzyme variation in Chthamalus stellatus and Chthamalus montagui (Crustacea: Cirripedia): evidence for the presence of C. montagui in the Adriatic , 1979, Journal of the Marine Biological Association of the United Kingdom.

[3]  A. Southward.  On the taxonomic status and distribution of Chthamalus stellatus (Cirripedia) in the north-east Atlantic region: with a key to the common intertidal barnacles of Britain , 1976, Journal of the Marine Biological Association of the United Kingdom.

[4]  Dando Pr.  Distribution of multiple glucosephosphate isomerases in teleostean fishes. , 1974, Comparative biochemistry and physiology. B, Comparative biochemistry.

[5]  R. Sukernik,et al.  Evolution in ground squirrels--I. Transferrins in holarctic populations of Spermophilus. , 1974, Comparative biochemistry and physiology. A, Comparative physiology.

[6]  P. Bacon.  The maintenance of a resident population of Balanus eburneus (Gould) in relation to salinity fluctuations in a Trinidad Mangrove Swamp , 1971 .

[7]  R. Scopes.  Methods for starch-gel electrophoresis of sarcoplasmic proteins. An investigation of the relative mobilities of the glycolytic enzymes from the muscles of a variety of species. , 1968, The Biochemical journal.

[8]  A. Southward.  On the behaviour of barnacles. IV: The influence of temperature On cirral activity and survival of some warm-water species , 1962, Journal of the Marine Biological Association of the United Kingdom.

[9]  O. Smithies,et al.  An improved procedure for starch-gel electrophoresis: further variations in the serum proteins of normal individuals. , 1959, The Biochemical journal.

[10]  H. Pilsbry.  Cirripedia of Curaçao , 1927 .

[11]  T. Cockerell,et al.  The Sessile Barnacles (Cirripedia) contained in the Collections of the U. S. National Museum; including a Monograph of the American Species , 1916 .

[12]  P. Bacon.  The Cirripedia of Trinidad , 1976 .

[13]  A. Southward.  Intertidal and shallow water Cirripedia of the Caribbean , 1975 .

[14]  A. Ross.  Bredin-Archbold-Smithsonian Biological Survey of Dominica, 8: The Intertidal Balanomorph Cirripedia , 1968 .

[15]  H. Wells.  Barnacles of the northeastern Gulf of Mexico , 1966 .

[16]  D. Bumpus.  Surface water temperatures along Atlantic and Gulf Coasts of the United States / by Dean F. Bumpus. , 1957 .

[17]  D. Leipper.  Physical oceanography of the Gulf of Mexico , 1954 .

[18]  D. Henry.  Cirripedia: the barnacles of the Gulf of Mexico , 1954 .

[19]  Natuurwetenschappelijke Studiekring voor Suriname en de Nederlandse Antillen.  Studies on the fauna of Curaçao and other Caribbean Islands , 1953 .

[20]  L. D. Oliveira.  Contribuição ao conhecimento dos crustáceos do Rio de Janeiro , 1941 .

[21]  G. Thorne.  A monograph of the nematodes of the superfamily Dorylaimoidea. , 1939 .

[22]  P. Mclaughlin,et al.  The barnacles of the Balanus amphitrite complex (Cirripedia, Thoracica) , 1931 .

[23]  E. Furreg,et al.  Cirripeden-Studien; zur Kenntnis der Biologie, Anatomie und Systematik dieser Gruppe ... , 1921 .

[24]  C. Darwin.  A Monograph on the Sub-Class Cirripedia , 1851 .