ADDENDA, AAK) 
mals in other countries, or new connections with 
thofe already known. 
Boat Worm.—1 am uncertain what animal, 
according to the Linnzean nomenclature, the au- 
thor calls the boat worm. ‘The third chapter of 
his Prodromo is appropriated to its reproductions ; 
and he thus defcribes the animal itfelf. © It is 
© annulated like the earth worm, by which means 
‘it can contract, extend, and move from one 
‘place to another. Towards the head, it is 
“as thick as a large goole quill. It is generally 
‘ about eight inches long, but the largeft, when 
‘extended, are afoot. ‘The colour of the back ~ 
‘is a mixture of grey and brown, which becomes 
* lighter towards the tail: the belly is whitith. 
‘ The ordinary abode of this animal is in clear, 
€ fhallow, or gentle running water. The anterior 
‘ part is buried in the mud, but the potterior rifes 
‘to the furface of the water. There it enlarges 
‘ and curves below like a boat which extends on 
‘the furface. .The concave part of the boat is 
‘uppermoft; and the rifing of the edges above 
‘ the water feldom allows it to flow over.. With- 
* out this particular figure it would fink, as it is 
‘ fpecifically heavier than water.—Thefe peculia- 
£ rities have induced me to callit the boat worm.’ 
; The 
