190 THE VOYAGE OF H.M.S. CHALLENGER. 



Fig. 3. f.]f. Fibular head of flexor brevis hallucis. 



d. 1 Abductor hallucis. 



d.* Third dorsal interosseus. 



d '. Abductor ossis metatarsi minimi digiti. 



d r '. Abductor minimi digiti. 



d 6 *. Accessory part of abductor minimi digiti. 



e.p.n. External plantar nerve. 



c/. Deep division. 



s. Superficial division. 



i.p.n. Internal plantar nerve. 

 Fig. 4. Plantar aspect of the right foot of a foetal elephant. 



l> 2 .t. Transversus indicis. 



p 3 . Fibrous cord representing adductor indicis. 



f' 2 . toy 5 . Flexores breves. 



f h .t. Tibial head of flexor brevis minimi digiti. 



d'\ Abductor minimi digiti. 



e.p.n. External plantar nerve. 



i.p.n. Internal plantar nerve. 

 Fig. 5. Plantar aspect of the left foot of Dasyurus viverrinus. 

 Fig. 6. Plantar aspect of the right foot of the same animal ; adductores removed. 



p 1 . Adductor hullucis. 



p 3 . Adductor indicis. 



p*. Adductor annularis. 



p s . Adductor minimi digiti. 



r. Raphe. 



f 1 . toy 5 . Flexores breves. 



f\t. Tibial head of flexor brevis hallucis. 



f^.f. Fibular head of flexor brevis annularis. 



d 2 . to dr. Dorsal intcrossei. 



d e , d 6 *, and d G '. The three separate parts of the abducting apparatus of the 

 minimus. 



ep.n. External plantar nerve. 



s. Superficial division. 



d. Deep division. 

 Fig. 7a. Transverse section through the suspensory ligament of the fetlock of the horse 



(a) Indicates the point in this section which is enlarged in fig. 7. 

 Fig. 7. The point " a " in fig. la as seen under a magnifying power of fifty diameters. 



n. Nerve. 



y Adipose tissue. 



