Sirenia, ileo-colic junction of, [208]

Soft palate, [42]

Somatic mesoderm, [21]

Somatopleure, [22], [29]

Spigelian lobe, boundaries of, [170]
development of, [169]
recess of lesser sac, [177]

Spiral coil of colon, [233]
colic valve of Rodentia, [231]
colon of Bos indicus, [233]
of Cervus sika, [233]
of Dasyprocta agouti, [234]
development of, [233]
of Nycticebus tardigradus, [234]
of Oryx leucoryx, [233]
of Ovis aries, [233]
fold of intestinal mucous membrane, function of, [220]
intestinal valve in Ceratodus, [119]
in Cyclostomata, [119]
in Dipnœans, [119]
in Petromyzon, [119]
valve of gastric diverticulum in Sus, [48]

Splanchnic mesoderm, [21]

Splanchnopleure, [22], [29]

Spleen, development and relation to dorsal mesogastrium, [108]
and great omentum in Macacus, [139]
pancreas and great omentum in cat, [127]
peritoneal relations, [110]
vascular connections, [108]

Splenic artery, [65], [108]
flexure, development of, [54], [76]
vessels, peritoneal relations, [109]