﻿MURIE ON THE THREE-BANDED ARMADILLO. 



91 



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premaxillaiy denticles being absent. 



genera and 



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Cuvier ^ of 1' Apar (three-banded species), viz. 



The foremost and the hindmost tooth are smaller than the intervening series, the former 

 in the lower jaw barely protruding beyond the gum. 



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Glands, Tongue, and Fhart/nx.~-Bj reference to the excellent plates of Wilhelm von 

 Eapp ^ and Antonio Alessandrini ^, showing in inferior views the peculiarities of the 

 salivary glands, and comparing these with the partial dissection in profile of our speci- 

 men (fig. 12), it is evident that their salivary apparatus closely correspond. One remark- 

 able structure (to wit, a small sac or salivary reservoir) has been successively and inde- 

 pendently described by Winker \ Jager ^ and Owen % in the 9-banded Armadillo. The 

 observations of the latter on 6-cinctus, Alessandrini and myself on other 

 species, and Hyrtl ^ on the Chlamydophorus pretty well establish the fact of this salivary 



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sacculus &c. being common to the Armadillo group. I need not, then, recapitulate dif- 

 fusely : suffice it to mention that enlarged submaxillary glands reach backward almost to 

 the sternum ; several diminutive ductlets collect the secretion into the sacculus, situate 

 under the mandibular angle, whence it is conveyed by a long duct to the symphysis 

 menti, and there penetrates the lingual membranes. The parotid is small, has an addi- 

 tional socia parofidis ; and there is a series of sublingual glandular crypts which, inside 

 each horizontal ramus, are firmly attached to the periosteal membrane. 



When within the mouth, the tongue is a couple of inches long ; but it can be thrust out 

 very considerably more. Ordinarily, from the tip to the fra}num it measures 1 inch. 

 In its elongate conical shape the lingual organ is exactly like that of the otlier Arma- 

 dilloes; and it has the same finely villous surface, which seems almost smooth to the eye. 



There are also a pair of fossulate papillae on the dorsum near the root . 



The muscles composing and acting upon the tongue seem to be a modification of wliat 

 Owen describes in the Great Anteater^ the decussation of fibres and constituent layers 

 being less complicate. I could not differentiate what he denotes sternoglossi, but in 

 their place observed that the relatively voluminous sternohyoidci and stcruothyroidci 

 were closely incorporated and sprung broadly from the inner surface of the manubrium. 

 An imperfect division forwards is attached to the thyroid cartilage, representative there- 

 fore of sternothyroid. The uppermost layer goes to the hyoid bone {~ sternohyoid), is 

 fastened to the front and sides of the anchylosed basi- and thyrohyals. Moreover the 



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Ossemena Fossiles,' 3rd ed. tome v. p. 123. 



" Op. ck. tab, vii. 



L. c. tab. xli. & tab. xvii. figs. 2, 3. 



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Dissert, sistens observ. anat. de Tatu novem-cincto,' Tiibing. 1824, p. 10 . 



* Quoted by Eapp. The original paper I have not seen. 



Armadillo 



of Verteb. 



' Monog. p. 42, tab. v. fig. 3. 



' Further consult authorities already mentioned. Truthfully delineated by Alessand 



tab. xiii., and B. 9-cinct%is, fig. 6, tab. xvi. 

 • Trans. Zool. Soc. vol. iv. p. 125. 



figured 



muscles of the mandibular and hyoid arches and tongue the following 

 . /«,,o^.;T^^T•f,•fp^ f^onstrictor salivaris, ceratohyoidcus, stylohyoideus, 



sternothyroidei, cricothyroidei, thyrohyoidei, intercornualis, gterno-lossus, gciuogloMUB ( 



e 



pharyn 



hyopharyngcus, 



eus 



2 



