534 



INDEX OP SPECIES. 



Plii/seternutcmcepJialuSfhiatoTjottheknowleigeotidOQ. 



, humerus of, 357. 



, hyoid bones of, 325. 



, known specimens of, 311-314. 



, measurements of skulls of, 321-323. 



, metacarpals of, 362-364. 



, nares of, 317. 



, nasal bones of, 318. 



, orbits of, 319. 



, osteology of the, 309-369. 



, pectoral limb of, 356-364. 



, pelvis of, 364-366. 



, petrotympanic of, 321. 



, pisiform bone of, 360. 



, radius of, 358. 



, ribs of, 351-354. 



, scapula of, 356. 



, sternum of, 354-356. 



, teeth of, 320, 324. 



, ulna of, 358. 



, vertebral column of, 326-350. 



, vertebral formula of, 348. 



microps, 369. 



{Euphysetes) svmas, 30-43. 



■ , comparison of skuU of, 41, 42. 



■ , description an.4 measurements of. 



172-174. 



— -, external characters of, 30-32. 



, fins of, 43. 



, fi'ontals of, 37. 



, interior of cranium of, 40. 



, lower jaw of, 40. 



, malars of, 39. 



, maxillaries of, 38. 



, nasals of, 37. 



— , occipital of, 34. 



, palatines of, 37. 



, pelvic bones of, 43. 



— , pterygoids of, 38. 



, ribs of, 43. 



, scapula of, 43. 



— , skull of, 34. 



, sphenoids of, 35, 36. 



, squamosals of, 39. 



, ulna of, 43. 



, vertebrae of, 42, 43. 



, vomer of, 37. 



tursio^ 369. 



Physeteridce, 30, 32, 33, 93, 103, 113, 114, 116, 



366, 368. 

 Phtjseterince, 114, 115, 368. 

 Pimelepte)its boscii, 386. 

 Pimelodus cinerascens, 384, 474. 



f/odmanni, 393, 404. 



guaiemdlensis, 393, 403. 



mmiaguensis, 393, 474. 



micropterus, 393. 



modestus, 384, 393, 405. 



motaguensis, 393, 404. 



nicaragueiisis, 393, 405. 



petenensis, 393, 404. 



polgcaidiis, 393, 404. 



salvini, 393, 404. 



wagnen, 384, 393, 405, 474. 



Pkitalea, 72, 76. 



Platanisht, 44, 87, 89, 92, 94, 96, 98, 100, 102-104, 



112, 115. 



-, atlas of, 330. 



, cervical vertebrae of, 328, 330, 333. 



gangetica, vertebral formula of, 349. 



Platanistidce, 113, 115. 

 Platamsiiiia; 114, 115. 

 Plattjglossua bivittatus, 390. 



disjillus, 390, 447. 



Plecostoimts, 393, 405. 



bidrrhosus, 477. 



Pleotognathi, 396. 

 Plectropoma afrum, 385, 411. 



chloropterum, 411. 



mo)iaamthus, 411. 



nmltiguUatum, 411. 



PUuronectklce, 392. 

 Phtus, 512. 

 Plovers, 72, 75, 79. 

 Podargiis Tiumeralis, 74. 

 Podkeps, 76, 520. 

 Poecilia chisoyensis, 395, 404. 



dovii, 395, 403, 405. 



elongata, 395, 406, 484. 



gUia, 395, 406, 485. 



mexicana, 395, 403. 



petenensis, 395, 404, 484. 



spilurus, 395. 



thermaUs, 395, 403. 



Polynemidce, 387. 



Polynemus (ipp-roximans, 383, 387, 423. 



