28 Proceedings of the Royal Society of Victoria. 



(3). There is no appearance of any eyes or pigment. 



(4). The uropods have not at the end of the peduncle, below 

 the articulation of the rami, any " very thick setae 

 with a few pectinations at the ends of the upper 

 sides only," which are characteristic of P. ausiralis, 

 nor are there any pectinated spinules on the inferior 

 margin of the sixth segment. 



(5). The peduncle of the lower antenna is relatively longer. 



(6). The first maxilla has the outer lobe narrower and 

 bearing only about twelve spines. 



(7). The maxilliped has the plate representing the epipodite 

 larger, extending to the distal inner margin of the 

 meros. The distal outer angle of the carpus is 

 somewhat produced, the propodos is wider, being 

 broader than long, and the dactylos is narrower. 



DESCRIPTION OF PLATE III. 



Fig. 1, — Side view of Phreatoiais shephardi. 



„ \a. — Projecting piece of Telson, under higher magnification. 



„ 2. — Upper Antenna. 



„ 3. — Lower Antenna. 



„ 4. — Left Mandible. 



„ 5. — Second Maxilla. 



„ 6. — First Maxilla. 



„ 7. — Maxilliped, inner surface uppermost. 



„ 8. — Part of First Peraeopod. 



„ 9. — Seventh Peraeopod. 



„ 10. — Uropod of Left side. 



N.B. — Fig. 1 is drawn to a scale shown beside it, which 

 represents 1 mm. equally enlarged. Figs. 2, 3, 8, 9 and 10 are 

 drawn to a scale shown beside Fig. 9, representing 0-1 mm., 

 and Figs. 4, 5, 6 and 7 are drawn to a scale shown beside 

 Fig. 4, also representing 0-1 mm. enlarged. 



