ANALYTICAL INDEX. 



335 



CHAPTER II. continued. 



Death ensued from mutilation, . . . PAGE 80 



Plate XI. explained, ... . ib. 



d. GORDIUS FASCIATUS SPiNiFER, The Belted Gordius, . . ib. 



Length, form, and general characteristics, ... ib. 



Liable to rupture, . . . .81 



Account of specimens, ..... ib. 



This animal rare, ...... ib. 



Has the identifying groove and slit of the Gordius tribe, . 82 

 Delle Chiaie, ....... ib. 



Plate XI. explained, . . ib. 



4. GORDIUS INTEGER, . . . . . ib. 

 General remarks a third species, .... 



a. GORDIUS FUSCUS, The Brown Gordius, . . ib. 



Length, breadth, colour, &c., .... ib. 



Involves itself in a knot, but has no groove, nor sensible slit, . ib. 



Mouth apparently in the anterior part, ... ib. 



As many as six specimens in one knot, . . . ib. 



The Nereids take refuge among them with impunity, . ib. 



Two specimens spawned in April, . . . .84 



Plate IX., XII., explained, .... ib. 



* 



b. Many worms have no external prominences, . . . ib. 



Their place in the system equivocal, ... ib. 



GORBIDS ANGUIS, The Snake Worm, . . 85 



One of the most remarkable of the tenants of the deep, . ib. 



A genuine Snake in miniature, . ib. 



Length, diameter, &c., . . ib. 

 Colour red and white, ...... ib. 



Description of the animal, . . . . 86 



Ova, .... ib- 



Forms a pale grey thick silken sheath, . . . ib. 



Sheath sometimes abandoned, .... ib. 



History of specimens, . ... 87 



Plates XIII. and X. explained, . ib. 



II. VERMICULI 



This section composed of miscellaneous observations, . . 88 



Certain animals brought provisionally within its scope, . ib. 



a. VERMICULUS CRASSUS, ..... ib. 



Only one specimen which is described, ... ib. 



