Tripos trichoceros (Ehrenberg) F. Gómez, 2013

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 : 398

11. Tripos trichoceros (Ehrenberg) F. Gómez, 2013

Diagnostic characters: Thecate dinoflagellate with small, almost flat, subtrapezoidal body. Presence of thin elongated apical and antapical horns. Apical horn straight and long. Antapical horns bend at an angle and run lateral-posteriorly. Due to the bend, a shallow notch is formed between the proximal parts of the antapical horns. Distally, all three horns are parallel to each other ( Fig. 2l ).

Distribution: Sundarbans 36, Tamil Nadu coast, India 8, 10, Gulf of Mannar 9, Bay of Bengal 6, 13, Great Nicobar Island, Andaman Sea 21, Indian Ocean 11, ROPME Sea Area, Iranian coastal waters 25, Mediterranean waters 26, Black Sea 27, Vitória-Trindade Seamount Chain, South Atlantic Ocean 35, Gulf of Mexico 15, Mexican waters, Pacific Ocean 33, Australian waters 31, Caribbean Sea 32.

This species was widespread and recorded from the stations APK1, APK2, APK3 (surface and subsurface depths), and APK4 (subsurface depths) in Kakinada waters, from the state of Andhra Pradesh.

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