17i2! JOURNAL OF ENTOMOLOGY AND ZOOLOGY 



a flas'ellum of three; flagellum about as long as tiftli article of 

 peduncle. Maxilliped lias a palp of three articles. 



The thoracic segments show no sinuations as described in 

 AUonJsnts cornutiis. Epimeral siitures are only faintly indi- 

 cated in some of the specimens on the second, third and fourth 

 segTuents. Legs similar in structure and very much spined. 



Abdomen has six segments ; first two covered laterally by 

 seventh thoracic segment. Epimera of third, fourth and fifth, 

 large, extended posteriorly; subtetragonal in shape. Sixth, 

 triangiilar, rounded posteriorly. Uropoda have basal article 

 broad and depressed ; outer ramus twice as long as inner which 

 articulates at the inner angle of the basal article and is con- 

 cealed at articulation by last abdominal segment. The outer 

 ramus does not appear to be carinated. 



These specimens evidently lie close to Alloniscvs cornutus. 

 Their jjeculiar habitat and associations should be significant. 

 As the specific habitat of A. cornutus is not given it is impos- 

 sible to compare them on this point. However, A. cornutus is 

 described as having sinuated thoracic margins. Such is not the 

 case with these specimens. The outer ramus of the ujopoda 

 does not appear to be carinated in this isopod as in ^. cornutus. 

 The flagellum of the second antennae of the latter is shorter 

 than the fifth article of ]ieduncle, several specimens of this 

 variety were examined and tlie flagellum appears about equal, 

 scarcely less than fifth article. Accordingly I have made these 

 specimens, provisionally, a variety of A. cornutus. 



(Continued in the next number of the Journal) 



