114 DR. W. BAIRD ON NEW ENTOZOA. [Mar. 25, 



body shows no transverse strise, the only visible ones being longitu- 

 dinal and finely waved. 



Length of female 5^ lines, male 4| lines. 



Hab. Intestines of the King- Vulture {Sarcoramphus papa). {Mus. 

 Brit.) 



2. ScLEROSTOMA MUCRONATUM, Baird. 



Body semicylindrical, of a brownish colour ; thickest in the mid- 

 dle, attenuating towards each extremity, but more so at the anterior 

 extremity. Integument strongly striated, or almost plicated. Head 



continuous with body. Male ? Female with the vulva situated 



about one-third from the posterior extremity, and marked with a 

 strong tubercle. The tail is armed at its extremity with a strong, 

 sharp spine, which is slightly incurved. 



Length of female 4 lines ; greatest breadth about | line. 



Males of this species have not been observed. 



Hab. Intestines of the Palluma {Phrymaturus palluma) from 

 ChiU. {Mus. Brit.) 



3. Pentastoma teretiusculum, Baird. 



Head rounded and truncated. Body cylindrical, of a red colour, 

 considerably more attenuated posteriorly. Tail shortly bilobed. 

 Greatest width of body about 4 or 5 lines below the head ; it then 

 gradually attenuates till it reaches the posterior extremity. Integu- 

 ment annulosely ringed ; rings about one-third of a line in width. 



Length 2 inches 5 lines ; breadth 3 lines. 



The only specimen taken is a female. 



Hab. Taken from the mouth of an Australian Snake (Hoploce- 

 phalus superbus) which died lately in the Zoological Society's Gar- 

 dens, Regent's Park. (Mus, Brit.) 



For the three above-described species 1 am indebted to Mr. Edward 

 Gerrard, of the British Museum. 



4. Tetrarhynchus mtnuto-striatus, Baird. 



Head of a white colour, solid and smooth. Neck much narrower 

 than head, nearly of the same dimensions throughout its whole 

 length, and minutely and finely striated. Bothria ear-shaped, rather 

 broader at upper than lower part ; open above, adnate below, with 

 callous, raised edges. Proboscides short and club-shaped. Body a 

 minute papilla. 



Length of head 2 lines ; breadth 1^ line. Length of neck from 

 1 inch to 1 3 lines ; breadth 1 line. 



Hab. Taken from a species of Brama, off Madeira. (Mus. Brit.) 



5. Tetrarhynchus breyis, Baird. 



The animal is of a white colour, and is very short and thick. 

 The head is large and broad, and the bothria are ear-shaped, rounded, 

 and very much thickened on the edges. The neck is very short. 

 The proboscides cylindrical and of considerable length. 



Length of whole animal 3 lines ; head nearly 2 hues ; neck 1 hue. 



Hab. Taken from a species of marine Eel at Madeira. (Mus. Brit.) 



