Tumidotheres Campos, 1989

Campos, Ernesto & Vargas-Castillo, Rita, 2013, Pinnotheres orcutti Rathbun, 1918, a new Eastern Tropical Pacific species of Tumidotheres Campos, 1989 (Crustacea: Brachyura: Pinnotheridae), Zootaxa 3666 (1) : -

Tumidotheres Campos, 1989

Type species. By original designation, Pinnotheres margarita Smith, 1870 . Gender masculine.

Diagnosis. Carapace thick, firm but not hard; surface covered with short, dense, deciduous tomentum. Gastric, cardiac regions separated from branchiohepatic area by depressions, all these regions tumid. Third maxilliped with ischium indistinguishably fused with merus; palp with 3 articles, carpus shorter than subtrapezoidal propodus, about twice as long as wide; dactylus narrowly spatulate, inserted in angular notch in middle of ventral margin of propodus, not extending beyond tip of propodus. Abdomen in both sexes with 7 free somites.

Distribution. Tropical Eastern Pacific region: T. margarita (Smith, 1870) , Gulf of California and west coast of Baja California Sur at San Ignacio and west coast of Baja California at El Rosario to Bahía de Panamá, Panamá (Schmitt et al. 1973; Campos 1989); T. orcutti (Rathbun, 1918) , Tenacatita Bay, Jalisco and Tres Marias Island, Nayarit, México to Cabo Blanco Island, Costa Rica (Glassell, 1938; present paper). Western Atlantic: T. maculatus (Say, 1818) , Cape Code, Massachusetts to Texas, U.S.A.; Cuba, Puerto Rico, Jamaica, U.S. Virgin Islands, Brazil, Uruguay, Argentina (Schmitt et al. 1973; Campos 1989).

Hosts. Mollusca: Bivalvia, Pectinidae ( Argopecten Monterosato, 1889 , Hinnites Defrance, 1821 , Placopecten Verrill, 1897 ), Pteridae ( Pinctada Röding, 1798 ), Pinnidae ( Pinna Linnaeus, 1758 ), Mytilidae ( Modiolus Lamark, 1799 , Mytilus Linnaeus, 1758 , Perna Philipsson, 1788 ), Anomiidae ( Anomia Linnaeus, 1758 ), Chamidae ( Chama Linnaeus, 1758 ); Polychaeta, Chaetopteridae ( Chaetopterus Cuvier, 1830 ), Arenicolidae ( Arenicola Lamarck, 1801 ) (Schmitt et al. 1973; Campos 1989).