PLATE IV. 
Squilla (Alima). 
Fig. 1 . Gonodactylus (Erichthoidina) . Telson of the specimen shown in PI. XII. fig. 3 
(pp. 55, 113). 
Fig. 2. Mandible of the same larva. 
Fig. 3. Maxilla of the same larva. 
Fig. 4. Squilla (Alima) gracilis , from St. Vincent. Stage No. 2, 6 '91 mm. long (p. 84). 
Fig. 5. Squilla (Alima) gracilis, from St. Vincent. Stage No. 4, 11 '54 mm. long. 
Fig. 6. Squilla (Alima) gracilis, from St. Vincent. Stage No. 5, 17'38 mm. long. 
