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Show 214 MAMMALIA. · Is fee d excI uIs ·v ely on very small Mollusca, enormous anu~a. e in the seas they inhabit. Theil· excre. which abound, It IS tru 'd 1 . f b fful re co our, and affords a tolerable die.(l) ment Is o a eau I L ep ) have a dorsal fin: they are • (B OPTERA ac • Other species ALlEN h' have a smooth belly, and those in also again subdivided into sue as which it is wrinkled. The ' • BALJENOPTER A ' with a smooth belly, . e Whales proper. One only is cited, the Are closely alhed to th . ifi li f the Hollanders ; copied from Balrena physalus, Finn sc t o nd others • Lacep. I, fig. ii. . A d Bonnaterre, a ' . Martens by n erson, h Common Whale, but more 'bb ) As long as t e (The GI ar. mon .m t h e same latitudes ' but shunned b.y the slender; very com fits extreme ferocity, and the paucity of fishermen on acco.un.t o difficult and for small vessels a danger· its oil; to captur~ It IS a f '1 'olence of its motions when k. account o t le VI ous underta mg, on . th t it is not a Jubarta, whose attac k e d • It is far from certam a name has been corrupted. The BALJENOPTERA, wz' th a wrinkled belly, or RoRQUALs,(2) . t f the throat and chest folded longi· Have the skin of the underpar o . kl s and consequently tudinally into ph.c re, to rmi'n g very deep wrf m he\c h' is unknown. It ti'ble of great dilatation, the use o w . suscep · t 0 species. th t the seas of Europe con tam w I f S-appears a f B' ans. Lacep. , · ' Bal boops, L.; Jubarte o dt~IIIIs~a~nd ~. (The Jubarta.) IV, f. 1 and 2,-V, f. 1, an . ' Wh le but has all the Superior in length to the Common a ' dangerous propenst· tl·e s f the Gibbar 0 • ' d .. (The Rorqualof Bal. musculus, Lm. .; L acep. pl • vi a. fnfi vuf . m the J ubarta in the Mediterranean.) Which on~y di "ers ro some of the details of its proportions. ( N) ( . t f f certain passages o f Martens a,n d 1) It is from an erroneous mterpre a Jon o . f th Ni.ord-Ca'Tler, whtch Zorgdrager that naturalists have rna d e a pecul '1a r speCies o e but in t:hr e An tare· should be a 'n orthern whale mores1 e n d er th an the commho n1 o neh ;i ch the Hollanders tic Seas there is a species very S·l ffi'l1 ar t o the Common W36 1a e3, 6w3 of the Cape also call Nord-Caper. See .oss. ~oss. P· ' . (2) Rorqual, whale with tubes, from tts ~~~a:. and of Bonnaterre, or the Boap, (3) The Balama rostral a of Hunter, of Fabrlcms . d which is the HYPEROO· is very different from that of Pennant and of Pontoppl an, DON. do of Bonnaterre, shou ld be bettedr The Balama gibbosa and the gibbosa B. or no sa dle Phil. Trans. 387, a~ determined· but they are only known through Du y, S Oss Foss.loc.clt. we are not s' ure they were precisely ·m t h e·l r nat ura1 state . ee · OVIPARA. 215 II I' I; , I OF THE OVIPAROUS VERTEBRATA. lL) ' {I Although the three classes of the Oviparous Vertebrata differ greatly from each other in tliftir u~mn <Jf respiration, and in all that relates to it, viz. the 1>~ of motion and the energy of the senses, they pre •al ~~ommon characters when oppoS<td to the Matn:mnU · fi Vi parous V ert-ehra.ta. The hemispheres of thei I irin are ;very slender; and are not united by ·a· corpus eal.kJsu:ttnufbe nrura of the cerebellum do not form that pro118be .idal d the ports Vardlii; the nat~atJ aat ·I 1 twd ·ijf h~e :classes~become gr~atly developed~ ooueil a 'tJil · · ad<l iji'e rlot covered by the hetiiispheres, but are visible below, or on the sides of the -ce~ebrulh; di it" ,· · s · ~e rtess (complex; the ear has not so many smaJI btlfl'U~'I hich in s~v~I are totally wanting; the cochlea, wheh it e~Uq,s, which is only the case in Birds> is much more simple, &-c. Their lower jaw, always composed of numerous pieces, is attached by a concave facet to a salient process, which belongs to the temporal bone, but separated from its petrous portion; the bones of their cranium are more subdivided, although they occupy the same relative places, and fulfil similar functions; thus the os frontis is composed of five or six pieces, &c. The orbits are merely separated by an osseous lamina of the sphenoidal bone, or by a membrane. When these animals have anterior extremities, besides the clavicle, which is frequently united to its fellow on the opposite side, and is then called fourchette, the scapula also rests ~pon the sternum, by a very broad and long coracoid apophy- 818· The larynx is more simple, and has no epiglottis; the lungs are not separated from the abdomen by a perfect diaphragm, &c. To render all these affinities sensible, however, It Would he necessary to enter into anatomical details, which |