THE GREAT ANTEATER. ] 19 



noticed, — was followed by the escape of thick tenacious mucoid saliva from the mouth, 

 where it was poured out of two apertures, situated one a little behind the other, and 

 both within six lines of the anterior border of the lower lip. After squeezing out much 

 of the muco-salivary fluid, which presented a nearly clear opaline appearance when 

 collected in a moderate quantity, an injection of size and vermihon was thrown into 

 both orifices, whereupon the course of the long ducts became indicated by their tume- 

 faction, especially at the base of the neck, where they dilated into reservoirs {ib. c, c), 

 before communicating, as at 6, immediately with the glands. The body of the hyoid, 

 the epihyals, and the bases of the ceratohyals formed a bilobed prominence {ib. I, I) just 

 anterior to the chief mass of the great salivary gland, and twenty-two inches behind 

 the opening of the mouth. 



The ordinary course of dissection was then proceeded with. Before carrying the 

 incision along the abdominal integuments, the nipples were searched for : only one pair 

 was found. Each nipple is subcompressed, subquadrate, about half an inch in length, 

 with from ten to twelve lacteal orifices ; it is situated four inches behind the axilla, 

 nearly opposite the lower border of the pectoralis major. The mamms may be said to 

 be post-pectoral in position. The common cloacal aperture is situated beneath the root 

 of the tail, on a prominence of soft integument, in shape like the letter T with the cross 

 slightly bent, and the stem directed forwards, and forming the fissure where the uro- 

 genital canal opens. The tumid sides of this fissure, representing the labia majora, have 

 their hinder ends overlapped by the crescentic fold, bounding the anus behind, the horns 

 of which fold are bent forward and terminate outside the labia : the soft vascular lining 

 of the vulva is continued by a short narrow median strip directly into that of the rectum. 



On reflecting the skin from the under part of the head, the attention was first directed 

 to a feeble development of a panniculus carnosus in the form of thin transverse fasciculi 

 {ib. e, e) about half an inch in breadth, and occurring at intervals of from two to three 

 inches, where they underlie the rami of the slender elongated under-jaw, and of the 

 breadth of an inch and a half where they lie below the base of the cranium ; these 

 muscular strips {dermogulares) have their attachments exclusively in the integument, 

 and aid in accommodating its movements to the alternating expansion and contraction 

 of the great gular dilatation (PI. XXXIX. fig. 3, p, q) near the base of the tongue. 

 The transverse fasciculi are crossed by a longitudinal strip of cutaneous muscle {dermo- 

 labialis posticus, PI. XXXVII. fig. 1 , /) on each side of the under part of the head and 

 neck ; the strip emerges from beneath the fore part of the great subpectoral gland, a, 

 is here very thin, and about six lines in breadth ; it diminishes in breadth and increases 

 in thickness as it extends forwards, assuming near the mouth the character of a muscle 

 independent of the skin (PI. XXXIX. fig. 1, f) ; where, passing beneath the tendon of 

 the retractor anguli oris, ib.f, it is inserted into, or blends with, the fibres of an acces- 

 sory portion of the orbicularis oris {ib. r). A shorter longitudinal muscular strip 

 {dermolabialis anticus, PI. XXXVII. fig. 1,/") arises from the integument below the 



