109 no 30 ♂ S. obliquens no 30 ♂ 13 pros 7 ribs. 29-28 undoubtedly the variation 28-27 in the dental formula for all members of the Delphinidae is largely due to the presence or absence of the minute anterior & posterior teeth in both jaws. In most species these teeth are exceedingly minute and in some specimens not present at all. In the majority of museum speci- mens they would be lost. 5' small anterior chevronas the 6th increasing abruptly in size - the 10th is the highest of the series 21 femurars c D F Ca 7 13 21 no 28 ♂ (cont) no 28 ♂ (cont) This was taken while phalanges are insitu. Phalanges (right pectoral) I II III IV V taking as first The terminal phalanges 1 7 6 3 2 digit the model outside or radix. of digits IV & V are circular - that of digit V is exceedingly minute. That of digit III is also very small. There are 6 carpalia - 3 proximal row & 3 distal row.