101 Tursio borealis (Peale) June 13/10 Okawa Japan On the evening of June 13/71 9/10 the "Akelona" Mazu" Capt. Shortton brought in five specimens - 2 specimens of Fagenophychnus oblegendens Gell, and three adult examples of Tursio borealis (Peale). The specimens had been killed for the one day previous and were not described by me until the morning of the 14th. Decomposition had of course set in to a certain extent and all the animals were more or less swelled as so by the resulting gases. Therefore the girle measurements taken after were only approximate the actual circumferences in life: the two girth measurements taken after in to the pectorals I believe would be affected but slightly by decomposition. The specimens were placed side by side on a convenient sled and I had examined them at my leisure thus having an exceptional opportunity for direct comparison, being able to note individual sex differences. They Both species were also compared with Scammon's figures published in Tursio "Dolphinidae" a copy of which I fortunately had with me at the time.