Figure 16. — Penacus (L.) schntitti Burkcnroad. a. Petasma, iuterior surface, $ 33 mm. c.l., oft' Tncuracas, Colombia, 

 b. Petasma, exterior surface, $ 33 mm. c.l., off Tueuracas, Colombia, c. Petasma, interior .surface of distal portion 

 of left half, (5 36 mm. c.l., Punta Araguapiche, Venezuela, d. Appendix masculina, ^ 36 mm c.l., Farol de Moela. 

 Santos, Brazil, e. Api)endix masculina, posterior surface, $ 36 mm. c.l., Farol de lloela, Santos, Brazil. 



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U.S. FISH AND WILDLIFE SERVICE 



