t.alb 

 ins. tend 



add 



pctn 



vast, int 



FlG. 70. Muscles of the 

 frog seen from Ihe ventral 

 side. On the left side (right of figure) 

 some of the muscles have been partly re- 

 moved, add.brev, adductor brevis ; add.long, 

 adductor longus ; add. mag, adductor magnus ; del, 

 deltoid; ext.cr, extensor cruiis; ext.trs, extensor tarsi, 

 or tibialis anticus brevis; FE, femur; gn.hy, gehio-hyoid ; gstr, gastrocr-mius ; hy.gl, 

 hyo-glossus ; ins Jen, ins.-riptiones tending; I. alb, linea alba ; my.hy, nnlo-hyoid; obl.int, 

 transversus; obl.ext, ohiiquus externus; o.st, omosternum ; p.c./iy, posterior cornu of 

 hyoid; pet, pectoralis; pcf>?, pectineus ; pe>\ peronetis; rct.abd, rectus abdominis; reel, 

 int. nmj , rectns intern us mninr, or gracilis major; rect.int.min, rectus internus minor, or 

 graci.is minor; sar, sartorii 1 : : sb.mt, ?ubmentalis; sem.fen, semitendinosus ; fib. ant, 

 tibialis antic MS longus; ttb/^st. tibiulls posticus; Ti.FI, tibio-fibula; vast. int, vastus 

 internus, caput anticum, or cruralis; x.st, xiphisternum. (After Parker and Haswell.) 



249 



