THE LOGGERHEAD TURTLE 
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eral brandies. The rod of cells with its branches then becomes 
hollowed out and forms the duct and secreting alveoli of the 
gland (figure 51). The muscle mass and connective tissue im- 
Figure 51. — Loggerhead turtle embryo of about 31 days’ incubation. 1. 
Musk gland. 2. Muscular and connective tissue wall. 3. Liver. 4. Costal 
cartilage of carapace. 
mediately surrounding the epithelial gland condense to form 
the walls of the gland. 
Laboratories of Animal Biology, 
The State University. 
