190 Notes on Humpback Skeleton No 2 S. D. This specimen was saved for me, but the skull was so badly broken by a blow from one of the harpoons that I decided not to send it to New York. Vertebral C D Ca Formula 7 14 33 = 54 I am certain this formula, but could not be same of the lumbar units. Cervicals 14 for rules The atlas is free. c[1] has a low spine, a thick transverse processes which extend directly outward. The metapophyses are low, thick & tubercle-like. The axis & 3rd cervical are arkylosed by their neural arches, the centra being free. The axis has upper lower transverse processes; on the right side these are arkylosed to form a ring; on the left side they do not meet there being a space of so rule between their distal ends. The transverse processes are directed outward & somewhat backward; the neural spine is a low ridge. The 3rd cervical has a slender upper process & a thick, about lower pro-cess directed strongly downward. The lower [illegible] the 5th is the last vertebra with a lower transverse process. The upper processes become thicker as they go backward. The spines of the 4th & 5th vertebrae are very low & small, that of the 6th is higher &