E. F. Garcia 
Rissoina parkeri a curious Carribean species 
Figures 1-9 
1-4. Rissoina parkeri Olsson & Harbison, 1953 
1-2. Shells, 6.2, 6.0 mm, Grand Cayman (coll. D. Kirsch); 3. Protoconch; 4. Microsculpture. 
5-6. Rissoina krebsii (Morch, 1876) 
5. Shell, 4.6 mm, Cienfuegos, Cuba (MHNS); 6. Protoconch. 
7-9. Rissoina multicostata (C.B. Adams, 1850) 
7-8. Shells, 4.0, 3.7 mm, Cienfuegos, Cuba (MPfNS); 9. Protoconch. 
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