1904.] NATURAL SCIENCES OF PHILADELPHIA. 107 



Another specimen, a very immature female, from Khow Sai Dow, 

 Trong, collected in January or February, 1899, by Dr. Abbott, may 

 be referable to this species, but considering the condition of the 

 specimen a positive determination is impossible. 



Remarks on the General System of the Family. 



While not prepared to bring forward any very radical departures 

 from Brunner's table of the divisions of this group,^^ it may not be out 

 of place to mention the impressions received while studying the 

 material herewith recorded. Brunner's Lonchodidce, Bacunculidce and 

 BacteridcB appear to be much closer related than his arrangement would 

 lead one to suppose. The Heieronemince (Bacunculidce Brunner) is 

 very close to the Bacterince; in fact, it is extremely difficult to settle 

 into which division to put certain genera, and this is so marked that 

 Kirby has transferred some genera placed by Brunner in the Bacunculidce 

 to the Bacterina;. 



The genera Phyllium and Chitoniscus are such extremely aberrant 

 types that the division including them should have higher taxonomic 

 rank than generally accorded to it. 



Laying aside the question as to whether the divisions should be of 

 family or subfamily rank, it appears evident that Brunner's Lon- 

 chodidce, Bacunculidce and Bacteridce are simply divisions of a group 

 not exceeding in rank the well-marked Necroscidce. Again, the 

 Phyllidoe should have a rating practically equal to the other members 

 of the "Phasmodea," a position warranted by its extreme differentia- 

 tion. 



«2 Ann. Mus. Civ. Star. Nat. Cenova, XXXIII, pp. 79-81. 



