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Figure 37 —Clavelina {Synclavella) gigantea Van Name: a, larger colony, 60 mm. X 36 

 mm.; b, right side of thorax; c, left side of abdomen, testicular follicles removed to show 

 outline of hind stomach and midintestinal portion; d, ciliated groove. 



bottom of a small pit. Distance between zooids 5-9 mm., 7.5 nnn. on 

 an average. 



Zooids 14r-25 mm. in length. Abdomen nearly as long as thorax or 

 slightly longer. Branchial aperture G-lobed, each lobe pectinated 

 with 6-12 small prominences; atrial aperture cut into 2 pectinated 



