Lymphoid tissue in the snapping turtle, Chelydra serpentina.
D000818:Animals; D006654:Histology, Comparative; D008198:Lymph Nodes / Q000166:cytology*; D008214:Lymphocytes; D008221:Lymphoid Tissue / Q000166:cytology*; D013154:Spleen / Q000166:cytology*; D013950:Thymus Gland / Q000166:cytology*; D014426:Turtles / Q000033:anatomy & histology*