from the dorsal fin back, the edge of the pectoral drops rapidly down into the sulcus - the edge is usually crenulated more or less. The edge of the pectoral is lost on the feathers about a little posterior to the middle - some- what further back than below - The center of the anterior edge of the feathers, at minimum at any rate, is 43 cent. from the tip of the pectoral - It is 33 cent. close to the posterior edge of the same place. The center of the hump on the inferior edge of the pectoral is 84 cent. from the axis, and 196 cent. from notch of feathers. The pectoral is 27 cent. thick, just in front of the insertion of the feathers, which is its narrowest place - The edge of the lower lip is 7y cent. thick + rounded. The mandible is rounded much 5 cent. high + 27 cent. long. There are 2 short furrows behind it, in front of each but they don't meet side with in center of mandible - It is situated somewhat down a belly at the end of the furrows. The left of the upper jaw or nostril is 11 cent. from the beginning of this whiskers - its edge is thick + rounded.