Figure 0. — Poiacia- (L.) sctifcriii- (L.). a. Petasma, interior surface, c? 30.5 mm. c.l., off Mellionriie Beacli, Fla. b. 

 Petasma, exterior surface. S 39.5 mm. c.l.. off Melbourne Beach, Fla. c. Petasma, interior surface of distal portion 

 of left half, i 35 mm. c.l.. Biloxi Bay, Miss. d. Apiieiulix masculina. right. £ 35 mm. c.l.. Biloxi Bay, Miss. e. Ap- 

 pendix masculina, posterior surface, S 35 mm. c.l., Biloxi Bay, Miss. 



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U.S. FISH AND WILDLIFE SERVICE 



