Trachelina.'} T11E INFUSORIA. 293 



within its reach; Jig. 288 is a specimen undergoing trans- 

 verse self-division ; and Jig. 289 a young one. Found in 

 exposed infusions, and amongst conferva. Size l-280th 

 to 1-1 20th. 



465. TBACHELIUS vorax. The voracious Trachelius 

 has a clavate ovate body, turgid white colour, and thick 

 obtuse proboscis,, shorter than half the body; the mouth is 

 situated near the middle of the body, and not at the base 

 of the proboscis. Found amongst conferva. Size 1-1 20th. 



466. TRACHELIUS meleagris. The pearl Trachelius has 

 a compressed lanceolate body, often curved in the form of 

 the letter S, with a thick obtuse proboscis, shorter than 

 half the body ; it has along the back a series of vesicles, 

 like a string of pearls. Size l-96th to l-72nd. 



467. TBACHELIUS lamella (Kolpoda lamella, M.) The 

 Jlat Trachelius has a depressed laminated body, of a linear 



lanceolate shape, often truncated anteriorly, and rounded 

 at the end. Size l-900th to l-280th. 



468. TBACHELIUS anaticula. The little goose-like 

 Trachelius. Body white, small, ovate, pyriform, attenuated 

 and diaphanous anteriorly. Found amongst conferva. 

 Size l-570th to l-280th. 



469. TBACHELIUS (?) tricophorus (Vibrio strict us, M.) 

 The whip-shaped Traehelius has a cylindrical changeable 

 body, often clavate; the proboscis capitate, and in the 

 form of a very delicate whip. Size 1-1 200th to 1 -430th. 



470. TBACHELIUS (?) globulifer. The spherical Tra- 

 chelius has a spherical hyaline body, with a very delicate 

 whip-like acute proboscis. Found amongst conferva. 

 Size 1 -200th. 



471. TBACHELIUS ovum. The egg-shaped Trachelius. 



