434 FAUNA HAWAIIENSIS 



developed process corresponding with the inner limb of the forked base than occurs in 

 D. hemignathi. 



The species, which I named after its host, may be characterised as follows : 



(i) Drepanidotaenia he7iiignathi Shipley. 



D. hemignatJii Shipley, Quart. J. Micr. Sci. xl. p. 620. 



Length i — 2'2 centimetres; breadth, in the middle of the body, 2 millimetres. 

 Head flattened and compressed, rostrum with a crown of ten hooks ; each hook 

 18 — 23 /LA in length, and with but a slight trace of the inner limb of the forked base. 

 Neck short. The first segments are short, but they very soon (eighth or tenth) show 

 traces of reproductive organs. Genital pore unilateral. The posterior limit of each 

 segment is sharply defined, and forms an angle of about 45 degrees with the sides. 

 Egg spherical, diameter about 40 — 50 ju,. The three pairs of embryonic hooks measure 

 about 20 /u, each in length. 



Hab. Hemignathus procerus. Sandwich Islands : in the intestine. 



(2) Mr Perkins has also given me two or three specimens of a tapeworm from 

 a Loxops, sp. This bird, like the Hoiiignatlms, is a member of the family Dre- 

 panididae, which is confined to the Sandwich Islands. Unfortunately the specimens 

 are without their head, and I am unable to identify them. They differ markedly 

 from the Drepanidotaenia described above. 



(3) Echinococcits ?. 



Echinococcus is mentioned by Dr Lutz as occurring occasionally amongst cattle 

 killed for the market. 



(4) Taenia crassicollis Rud. 

 This cysticercus larva of this species was found by Dr Lutz in Mus decumajius. 



(5) Taenia solium L. 

 The entozoon is said to be very uncommon, but is occasionally met with. 



III. ACANTHOCEPHALA. 

 (i) Apororhynchus heinignathi^ Shipley. 



In the summer of 1894 I received from Mr Perkins seven small parasites which he 

 had noticed adhering lightly to the skin around the anus, but beneath the skin, of a 

 species of bird, Hemignathus procerus, which he collected in the island of Kauai. Each 



Quart. J. Micr. Sci. xxxix. p. 207 and xlii. p. 361. 



