114 DR. W. BAIRD ON NEW ENTOZOA. [ Mar. 25, 
body shows no transverse striae, the only visible ones being longitu- 
dinal and finely waved. 
Length of female 5} lines, male 45 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 3 line. 
Males of this species have not been observed. 
Hab. Intestines of the Palluma (Phrymaturus palluma) from 
Chili. (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 I am indebted to Mr. Edward 
Gerrard, of the British Museum. 
4, TETRARHYNCHUS MINUTO-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 13 lines; breadth 1 line. 
Hab. Taken from a species of Brama, off Madeira. (Mus. Brit.) 
5. TrrTRARHYNCHUS BREVIS, 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 lines; neck 1 line. 
Hab. Taken from a species of marine Eel at Madeira. (Mus. Brit.) 
