NOTES ON AUSTRALIAN SIPHONAPTERA — KAINBOW. 103 



Fleas Parasitic on the Tiger Cat ;"'■ in which I pointed out that 

 the form described by Skuse as the male of his Stej^hanocircus 

 dasyuri'^ was referable to another genus, and that in all pro- 

 bability it was Pulex j'dscuttns, Bosc. In arriving at this con- 

 clusion I was guided by Carl Baker's " Preliminary Studies in 

 Aphaniptera,"* the only work at that time accessible to me. It 

 now appears that the form is distinct from P. fasciatus, and that 

 it is a species of the genus Ceratojihyllns, Cui'tis. The Hon. N. 

 C. Rothschild, commenting upon this species as described and 

 figured by Skuse remarks : " One of the species, of which Skuse 

 possessed both sexes is probably the one described by us under 

 the name of Ceratophyllus hilli."*^ Unfortunately the figui'e of 

 the Ceratophyllus (male) on Skuse's plate is not a good one. 

 The clasper is not defined, and the finger instead of being sickle- 

 shaped stands prominently out like a big tubercle or horn-like 

 process. 



C. hilli is described and figured by Rothschild in his charac- 

 teristically thorough manner, ° and with this work I have carefully 

 compared Skuse's types of his so-called male Stephanocircus. The 

 result of this study has convinced me that they are distinct from 

 the male and female of Rothchild's species, C. hilli, and as they 

 also appear distinct from other known forms, I herewith append 

 a description, naming the species in honour of the Hon. N. C. 

 Rothschild who has done such admirable work in connection with 

 the Siphonaptera. 



Ceratophyllus rothsciiildi, sp. uov. 



(Figs. -27, 28, 29.) 



9 Caput. — The front of the head bears a row of six fine 

 bristles between the antennal groove and tlie maxillary palpus ; 

 immediately below this there ai'e a number of fine hairs scattered 

 iri'egularly over the side of the head ; again, below the row 

 referi'ed to above, but situated towards the front, there are two 

 pairs of long fine bristles, one pair being below the other ; Inflow 

 these again, there is a larger and stronger bristle than the fore- 

 going. The hinder part of the head bears thi-ee I'ows of bristles ; 



- Eftinbow — Rec. Anstr. Mus., v., 1903, pp. 53-55. 



•■* Skuse— Rec. Austr. Mus., ii., 1893, p. 78, pi. xvii. 



< Rothschild— Ent. Monthly Mag., (2), xvi., 1905, p. 60. 



■' Rothschild— Novit. Zool., xi. 1904, pp. 622-3, pi. xi., fi^j. 43, 4i 



