EXPLANATION OF PLATE XXX. 
PAGE. 
Fies. 1, 2. Club-head.—(4). (Nat. Mus. of Costa Rica, No. 8937)..............-...-- 59 
Eies:3;, Club-head.:—(4)> (Cat. sNo: 3332 ca oes ae ois ae ee oe eee 59 
Eig. 4: Club-head.— (@):” (Nat: (Costa Mica, No: 8942)\5 2 sare lee lie eee 59 
Fie. 5. ‘Club-head. — (2). (Cat. No. 4382) oc. ane 22 dns olslete oye ois pie eres ener a9 
Fre. 6. Club-head. —(). (Nat. Mus. of Costa Rica, No. 8983)............ Boo s0geb 59 
164 
