PLATE L. 

 Clavelina lepadiformis (Miill.) Sav. (p. 152) 



FIGS. 



1. Test, showing' through it the branchial sac in the 

 thorax and the digestive and reproductive organs 

 in the abdomen, x. " A free space between the 

 mouth and viscera ; else, where the oesophagus,, 

 stomach, and intestine appear to be adherent to 

 the common envelope " (Hancock, remark written 

 on drawing). A thickening of the mantle (Milne 

 Edwards] . 



2 and 3. Right and left sides of two specimens deprived of 

 their test, with the branchial sac shrunk up. 



4 and 5. Right side of two specimens with the mantle shrunk 

 up within the test, and the branchial sac much 

 shrunk up (probably from immersion in spirit). 

 In fig-. 5 the upper h should be i (intestine), the 

 lower li only indicating the heart. 



