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i'.i:i,!.KTi\ M, r.Mri:i» stai'ks national miskim. 



atoly Ih'.voimI. Tlic laif^c iho't) v riirlrri fiiU-rs llir laivt' iimii'lc opposift' 

 tlio iiiidtlli' <>(' IIk^ U'liiitli of tlic vciitiicK'. Tliosc \t's,s('ls at tlicir cai' 

 iVv.w, tciJiiiiiatitnis aif distiiictlv seen in the lai};<' iH'ricanliai! sac. Tlie 

 rrna jioitiv is very larj;«', and rxtcnils alonj; tlic dorsal side of tlic livn- 

 proximally. 



'I'Im' stdiiiacli is scarcely distiii}:iiislial>Ic. Tlicaliiiiciitaiy canal is only 

 convoluted in tlic poslcrior two litllis ol" its lcnj;tli, tlic rcctnni hcin^dis 

 liiiji'iislialilc liy its snpciior diameter and its alisence of llexun'. 'I'iic 

 livei' is larj;eand not divided, and tj-rndnales ratlier abrnptly where tin 

 convolntions of tlie alimentary canal commence. It is attached to the 

 median line I>y a lulil of peritonenni by <»ne «'dj;c, Its middle line is 

 grooved, and fhe.nrooxe is occupied hy a vessel, and by the edj^e of the 

 ineseiitery, wliich extends to the intt-stiiies. In IMal*' \li it is cat at 

 the proper point to display the larue j;all l>ladder (//). 



Tiie Inii,i;s are nt)l so lonf;as in Simt litrnlin(i,\\i}{ e.xlendinj^ bi^vond 

 the liver. 'I'hey are of sid»e(|nal lenj^th. 



The testis is sin;:le and very elongate. It extends from the extrem- 

 ity of the liver to neai' the ontlet of the vas deferens. ParalUd to it. and 

 in part attached to it, is a slendei'. flat body, which I f'lppose to l)e the 

 cnrjuis adiposnm. The I<idi;ev is an elonj^ale, oval, ami tial body, empty- 

 in};' by a veiy short iirelci' into the cloaca. Its n iiarcri licntcs are dis- 

 tinctly visible from the inferior side. Tin- Mnllerian duct extends alonj,' 

 its exteiior bender and anterior Itt it between the Innj; and the dorsal 

 jicritonenm a Ion;;' distance anteriorly; that is, as far as the proximal 

 fonrlli of the Icnjilh of the stomach. The iirinaiy bladder is remarka- 

 bl; ii;;ate, extending; forward to the distal end of the liver. 



Tile spleen is elon;;ale, but not so mnch so as in Sin n lnccrtiiKt, (Mpial 

 in;:: abont one third of the stomach, and Just reachinu the <;allbladdcr. 



Ox/<y»/()f/;/. —According: to Mr. I'. A. I, mas, who drew the plateof Am- 

 pliiuma for the present volnme, the iliac bones weic nnsymmetricalix 

 attached in the s|tecimen, the om' to the sixty-third and the other In 

 the sixty-fonrlii \ertebia (Plate x). 



l'(*/(7'. — I'rof. .1. A. Ii'ydcr, ol' the I'liiversity of TennM Ivania, has 

 hejit this species in captivity. I le stall's I hat lis \ oice is so lonil that 

 it can be heard from (»nr ronni to anotiier of the bnildin;; of the sclioni 

 of biolo;^y. 



SII.'LN I.ACIIM INA ~\K •-'•.'il. ) 



Si)hni<'hii(tli>(t!/. — Tiie branchial arteries leave the iiiilhiis oi'tiriosiis 

 ii»'..r to.yethcr. scarcely formiii;,' a Innitiis loniiiinnis. The branchial 

 veins, on the her hand, unite on each side into a hinicKs coiniiiiniis ov 

 aorta r lo!, which nnilcs wit'i that of the opposite side to foi'm the aorta 

 a considei'able distance aiiteiioi'to the hiilhns arti rinsKs. The valve of 



the bnllms is a lon^iiliidinal elevation conlainin;;' six ;,M'ooves. on» i'- 



respomiin;;' to each aiirrin hr<iiicJii<ills, (IMat'' N\i. li;,^ .^kj.) 



lio ,\ bin,i;s extend from Ih" heart to Ih cloaca. The stomach is 

 scarce' distinguishable from the intestine. I'lie latter i.^ Iar;;e, and is 



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