Abstract
On 8 November 1979, in the eastern Caribbean Sea, off Venezuela (10°25'N,64°30'W), in about 180 m of water, a herd of approximately 250 dolphins was observed. They were identified as Atlantic spinner dolphins {Stenella cf. S. longirostris Gray), on the basis of their cape, elongated rostrum, triangular dorsal fin, and other pigmentation evidence (Perrin 1972). For about 30 minutes groups of dolphins rode the bow of the boat, a "Morgan 41," which was moving at about 9 km/hr. Individuals were easily observable.
