﻿32 DR. J. MURIE ON THE THREE-BANDED ARMADILLO. 



from about opposite tlie last two ribs, and extends to the lumbar fascia and the 

 crest of the ilium by a very delicate web of areolar tissue intermixed with t 



tendinous 



united 



fascia. This spreads out in a fan-like manner, the posterior insertion being the 

 surface of the hind hmb as low down as the knee, reaching inwards, and being 

 with the icner edge of the flexors of the back of the log. The anterior and abdo^C 

 insertions of the panniculus are lost in the superficial fascia and skin covering the a "11 

 and median hne of the abdomen. 



The weak condition of this muscle, as also its attachments, tends to show that it e f 

 httle into the rolling-up action of the body and carapace. It rather seems to be rela d 

 and loose while the limbs are being dra^vn towards each other as they are retracted * f 

 their respective chambers. 



The foregoing muscles, besides their interest as appurtenances to the mechanism 

 whereby movement of the one portion of the carapace towards the other is effected 

 possess an additional interest homologically. Before collating argument thereon I 

 shall advert to the researches of the Italian, Prof. Alessandrini^ as showing that'in 

 species of Dasypus, which have less power of rolling and unrolling themselves than 

 Tohjpeutes, carapace -muscles similar in kind obtain. Cuvier^ in JD. cinctus, has more 

 particularly illustrated the subjacent sheet, or what more commonly goes by the name of 

 panniculus carnosus. In Chlamy dophorus truncatits, HyrtP fully notices the distribu- 

 tion of the latter, and expresses absence of the shield-contractor, so conspicuous m other 

 genera of the loricate Dasypodes. 



By way of comparison I select the Apteryx and the Hedgehog, for these reasons, that 

 they equally have marked and well-defined cutaneous muscles, and that Owen and 

 Cuvier's terms are distinct, though evidently applied to homologous structures in the 

 classes Aves and Mammaha. 



In the Apteryx* our English anatomist defines :— 1, a constrictor colli, situate at the 

 npper back part of neck, with chiefly transverse fibres ; 2, sterno-cervicalis, enclasping 



integumentonim Armadilli 



I -vrould, however, more particularly 



Bologna, torn. vii. 1856, " Cenni sull' An 



muscular layer f t^T"' '''^'''''^*'' '* octodecimcinctus , Linn." In this, tab. 13. fig. 1, he demonstrates the inner 

 of the same Invertin' °'''''^'™^^' '!^*'' ^^*^ ^*« offshoots to the movable zones. I append part of his description 

 -capillar andTeM '°f .\ \°''^^'' ""^ ^^ ^^^^ paragraphs, that the main muscle(= the beUies of my contractor of the 



-apular and pelvic shields) may take precedence! 



mobili. ed in Darte ancora le vicine 



posterionnente 



/ 



xone stessp . fo -v i'"^^^™^^, sm quali anzi fissandosi, p 



dwtinate aUa adduzione delle ' integumenti molli, interposto aUe singole zone mobiU, manifestamente 



teriori sono pii brevi."— Z I ^^'IV^^'^®* ^^ ^''^"^^ ^triscie anteriori hanno la medesima estensione, ma le due pos- 



C Edentaten,' 2nd ed. p. 65) 



triige 



' x™. Z.»..lc ^l-4^~ *-' ™'-.'- 1B55, p. 29. 



Maximilian von Neuwied, 

 ^sandrini's inferences. 



