Dinophysis caudata Saville-Kent, 1881

Bhowal, A, Purushothaman, J & Siddique, A, 2023, Taxonomic studies of marine dinoflagellates and distribution in the coastal waters of Kakinada, Andhra Pradesh, India, Indian Journal of Geo Marine Sciences 52 (8), pp. 390-401 : 397

7. Dinophysis caudata Saville-Kent, 1881

Diagnostic characters: Thecate dinoflagellate with an areolated surface. Body shaped like irregular trapezium. Left sulcal list spans the length of main body. Dorsal body margin curves gradually, and ventral margin runs straight along the body. Posterior ventral projection possesses a characteristic fingerlike structure ( Fig. 2g & h ).

Distribution: Sundarbans 36, Tamil Nadu coast, India 8, 10, Andhra Pradesh, India 5 - 6, Gulf of Mannar 9, Bay of Bengal 3, 8, North Arabian Sea 23, Indian Ocean 11, Australian waters 31, ROPME Sea Area, Iranian coastal waters 25, Black Sea 27, Korean waters and the East China Sea, Pacific Ocean 37, Eastern Pacific Ocean 38, Peru waters 3, Argentine Sea 39, Mediterranean waters 26, Caribbean Sea 32, Vitória-Trindade Seamount Chain, South Atlantic Ocean 35.

This species was recorded from the station APK1, APK2 (surface and subsurface depths), and APK4 (subsurface depths) in Kakinada waters from the state of Andhra Pradesh.

Genus Ornithocercus Stein, 1883

Figures

Fig. 2 — Micrographs (Light microscope and SEM images) of species recorded from Kakinada coastal waters: (a) Protoperidinium depressum (Bailey) Balech 1974; (b) Protoperidinium brochii (Kofoid & Swezy) Balech, 1974; (c) Protoperidinium leonis (Pavillard) Balech 1974; (d) Protoperidinium ovum (J. Schiller) Balech 1974; (e) Protoperidinium pallidum (Ostenfeld) Balech 1973; (f) Spiraulax kofoidii H. W Graham, 1942; (g) Dinophysis caudata Saville-Kent 1881; (h) Dinophysis caudata Saville-Kent 1881; (i) Ornithocercus magnificus Stein 1883; (j) Phalacroma doryphorum Stein 1883; (k) Tripos inflatus (Kofoid) F. Gómez, 2013; (l) Tripos trichoceros (Ehrenberg) F. Gómez, 2013; (m) Tripos candelabrum (Ehrenberg) F. Gómez, 2013; (n) Tripos vultur (Cleve) F. Gómez 2013; (o) Tripos vultur (Cleve) F. Gómez 2013 magnified view; and (p) Triadinium polyedricum (Pouchet) Dodge, 1981