PLATE VI. 
Lysioerichthus. 
Fig. 1 . Lysiosquilla (?) ( Erichthoidina ). Telson of the larva shown in PL XII. fig. 1 . 
Fig. 2. Seventh thoracic limb of the larva shown in PI. XII. fig. 6. 
Fig. 3. Squilla {Alima) gracilis, from St. Vincent. Stage No. 6 ; 42 ’8 3 mm. long. 
Fig. 4. Squilla {Alima) gracilis. Stage No. 6. Mouth parts more highly magnified. 
Fig. 5. Squilla {Alima) gracilis. Stage No. 6. Anterior end of body more magnified. 
Fig. 6. First abdominal appendage of the larva shown in PI. XII. fig. 6. 
Fig. 7. Telson of a P sender ichthus larva from Volcano, similar to the one shown in 
PI. XII. fig. 6, but If inches long. 
