1008 MESSES. B. C. A. WINDLE AIS'D F. G. PAKSO'S OiST [DeC. 19, 



it falls short of it. Amongst the Bmdypodidm this is particularly 

 the case. In Bradi/jnis (4, 5) it reached as high as the fifth rib, 

 and in the latter had four tendinous inscriptions ; in another (6) 

 it was attached to the ribs from the fifth to the eighth, and in a 

 fourth (7) from the third to the seventh. In this last two 

 inscriptions were noted. Amongst the Myrmecophagidce, Tamandua 

 (14) has the attachment extending up to the first rib, and three 

 indistinct intersections were seen. In CyclotJmrus (19) the 

 attachment was to the eight upper ribs with three tendinous 

 intersections, whilst in another case (20) only the second to the 

 sixth ribs gave origin to the muscle. Amongst the Dasypodidoi 

 the first rib was the point of attachment in Da&'yjnis (22), Tatusin 

 (26), and Chlamydophorus (27, 28). In the last-named form one 

 tendinous intersection was alone noticed. In Manis (29) the 

 attachment was from the first to the fifth rib, and in Orycteropus 

 (35) the highest rib was also attained. We are not inclined to 

 place much reliance on the number of intersections, as in small 

 mammals these are often very indistinct. 



Obliqui ccbdominis externus et intcrnus. — The former of these 

 muscles was in Bradypus (4) attached to the lower ribs, in (7) to 

 the ribs from the 6th to the 14th, and in (6) to the last six. The 

 condition of the internal oblique is only mentioned in the second 

 of these cases, where it is said to have gone to the last rib. 

 Tamandua (14) amongst the Mynnecophagidce has the first muscle 

 arising from the fourth rib backward and the second from the 

 last five ribs. Amongst the Dasyp)odidce, in Dasypus (22, 23) the 

 external oblique rises from the ribs from the third to the seventh, 

 whilst in another specimen (24) it is stated to have arisen as high 

 up as the first. In Chlamydophorus (27) it rose from the lower 

 sir ribs. In Manis (29J the external attained the first rib and the 

 internal was attached to the last six. In Orycteropus (3-5) the 

 same high attachment of the external oblique is recorded. 



Psoas niagnus. — This muscle seems to be always present, though 

 frequently very closely associated with the iliacus, a condition which 

 we think accounts for the fact that in one or two cases it has been 

 reported as absent. It is large and more or less connected with the 

 iliacus in the Bradypodidce, Brady pus (4, 5) and Cholospus (10). 

 Amongst the Myrmecophagidm its presence is noted in Myrmecophaga 

 (12), Tamandua (14), and Cyclothwus (17). In none of these 

 cases is any special association with the iliacus mentioned. 

 Amongst the Dasypodtdce it arose from the sides of all the lumbar 

 vertebrse in Dasypus (22, 23). In Tatusia (25) it is described as 

 inseparable from the iliacus, a condition which we think must also 

 have obtained in Chlamydophorus (28), where it is stated not to have 

 been found. In another specimen of the same (27) it is said to 

 have been very small, though separate from the iliacus at its origin, 

 whei-e it lay as a thin strip along the side of the ilitim. In the 

 account of a third specimen (28 a) no mention is made of this 

 muscle, though the presence of the psoas parvus is alluded to. It 

 is therefore probable that here also it was inseparable from the 



