EXPLANATION OF PLATE XXXT. 
PAGE. 
Pic. 1. Club-head: =). (Nat: Mus.ofCostal Rica, No: 33109) iene ene ene 59 
Fic. 2. Club-head.— (4). (Nat. Mus. of Costa Rica, No. 7564) ......:.......:....--- d9 
Hic. 3. Club-head: —(4). (Nat. Mus: of CostapkicayiNo: 77 08)h e355 n= eee ee 60 
Wie. 4.Club-head?— (@). (CatsiNo. 2422 eii. foes |e ane oe re eee 60 
Fie.d. Club-head:— (@)s (Cat. Now See) are eset eae ise eens it eee 60 
Fie. 6. Club-head.— (4). (Nat. Mus. of Costa Rica, No. 8946) ....................-- 60 
Fig. 7. Club=head.— (2). - (Cat Nor 22) aig conve a oyster ene 60 
Pr1@..8.-Club-head.— (4). (Cat. No, 253) se oss. 2 oe ee OE eon nea eee 60 
Fie. 9..Club-head. — (4)... (Cats No. 2432)... 254.5 Stee eo ane ee nore eras 60 
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