L layardi (Mesoplodon), [3], [77]
M Manigault, G. E., [35] Mearns, Dr. E. A., [32] L. di Z., [32] Mesoplodon, [3] Mesoplodon bidens, [2], [3], [4], [11] distribution of, [76] external dimensions of, [23] from Nantucket, Mass., [2], [3], [4] mandible of, [6] phalangeal formula of, [18] skull of, [4] skull, dimensions of, [8], [15] teeth of, [6] vertebral formula of, [15] Mesoplodon bowdoini, [3] distribution of, [77] Mesoplodon densirostris, [2], [9], [28] description of exterior of, [10] distribution of, [76] earbones of, [83] external dimensions of, [23] from Annisquam, Mass., [2], [3], [4] skull, dimensions of, [8] Mesoplodon europæus, [2], [11] color of, [22] distribution of, [76] external characters of, [21] external dimensions of, [20], [23] first record of, [11] from Atlantic City, N. J., [2], [3], [11] history of, [20] from North Long Branch, N. J., [2], [3], [11] lungs of, [22] mandible of, [14] pectoral limb of, [18] phalangeal formula of, [18] ribs of, [17] scapula of, [18] skeleton, dimensions of, [18] skull of, [13] specific characters of, [12] sternum of, [18] stomach of, [22] teeth of, [15] tongue of, [22] type-skull of, description of, by L. Brasil, [24] Van Beneden’s opinion regarding, [12] vertebræ of, [15], [16] vertebral formula of, [15] Mesoplodon grayi, [3] distribution of, [76] Mesoplodon hectori, distribution of, [77] Mesoplodon layardi, [3] distribution of, [77] teeth of, [28] Mesoplodon stejnegeri, [2], [24] distribution of, [77] earbones of, [83] external characters of, [29] from Bering Island, [1], [3] from Oregon, [1], [2], [3] mandible of, [28] skull of, [25] skull, dimensions of, [29] teeth of, [28] teeth, dimensions of, [29] Museum of Comparative Zoölogy, [2], [3], [76]
O Oregon, Mesoplodon stejnegeri from, [1], [3]
P Physeter bidens, [4] planifrons (Hyperoödon), [77] Pla-un, [66] Pribilof Islands, Berardius from, [1]
R Ring, J. H., [63] rostrata (Balæna), [76] rostratum (Hyperoödon), [76]
S St. George Island, Alaska, Berardius from, [1] Scollick, J. W., [32] semijunctus (Hyperoödon), [30] (Ziphius), [30] seychellensis (Ziphius), [9] Soderman, Captain, [32] sowerbensis (Delphinus), [4] sowerbyi (Delphinus), [4] Stejneger, Leonhard, [1], [3], [24], [31], [60], [64], [65] stejnegeri (Mesoplodon), [24], [77]
W Wellander, Capt. Otto, [25] West coast of United States, Ziphiidæ from, [2]
Y Yaquina Bay, Oregon, Mesoplodon stejnegeri from, [24]
Z Ziphiidæ from east coast of United States, [2] from west coast of United States, [2] list of existing species of, [76] specimens of, available for study, [1] in National Museum, [1] Ziphius, [30], [77] fossil, [4] species of, [30] Ziphius cavirostris, [2], [30] Argentine specimen of, [36] caudal vertebræ of, [42] cervical vertebræ of, [38] chevron bones of, [44] color of, [33], [34] comparison of skeletons of, [36] dimensions of, [32] distribution of, [77] earbones of, [83] external characters of, [59] external dimension of, [32], [33], [34] from Argentina, [55], [57] from Barnegat City, N. J., [2], [31] from Barnegat City, N. J., history of, [33] from Bering Island, [1], [31] from Charleston, S. C., [2], [31] from Kiska harbor, Alaska, [1], [2], [31] from Newport, R. I., [2], [31], [32] from St. Simon Island, Ga., [2], [31] lumbar vertebræ of, [41] pectoral limb of, [46] phalangeal formula of, [46], [49] scapula of, [45] sex characters of, [54] skeleton, dimensions of, [47] skeleton of, from Bering Island, [58] skull, age variations in, [50] dimensions of, [53] sternum of, [45] teeth, description of, [55] dimensions of, [55] thoracic vertebræ of, [40] skeleton, variations in, [49] vertebræ of, [37] vertebral column of, [36] vertebral formula of, [36] Ziphius gervaisii, [30], [54] Ziphius grebnitzkii, [30] external characters of, [59] from Bering Island, [31] skull, dimensions of, [53] skeleton of, from Bering Island, [58] Ziphius semijunctus, [30], [35] from Charleston, S. C., [2] type-skull, dimensions of, [53] Ziphius seychellensis, [9]