MARINK WOOD-BOKING ANIMALS. 



393 



Locality. — Simon's Town, South Africa. Specimens forwarded 

 by Lieut. L. H. A. Shadwell, R.IS^.'S^.K., Officer in charge of 

 Works, H.M. Dockyard. From Blue Gvun timber, Ordnance 

 Jetty, E yard ; from Pitch Pine, Old Ordnance Jetty, E yard ; 

 and from creosoted Danzig, A, No. 3 slip. 



Remarks. — Teredo navalis und T. peclicellata have both been 

 recorded by Gatliff" and Gabriel from Victoria., but, so far as I 

 know, neither has been recorded from South Africa. 



Some of our South African specimens agree verv closely, as 

 regards the structure of the pallets, with specimens from 

 Alderney in the Norman collection determined, apparently by 

 Gwyn Jeffreys, as T. ])edicellata. Jeffreys himself remarks that 



Text-figure 1. 



Teredo navalis Linn. 

 A. Siphons and associated structures in a specimen from the estuarj' of the 

 Thames at Gravesend. The tieshy collar at the base of the siphons has 

 oeen divided and reflected, showing the insertion of tlie rijiht pallet from 

 the inner side. B. Pallet of a specimen from Simon's Town. Actual 

 length about 5 mm. 



" this is not a satisfactory^ species," and the identification of his- 

 specimens with the form described by Quatrefages appears to 

 be largely conjectural. Quatrefages's description (Ann. Sci, Nat. 

 Zool. ser. 3, xi. 1849, p. 26) contains little to suggest it except 

 the statement that the pallets are colovn-ed dark bi'own. In the 

 Alderney specimens and in some of those from South Africa 

 (text-fig. 1, B). the stalk of the pallets may be as long and less 

 than one-foiu'th as wide as the blade. The blade is flattened on 

 the inner and convex on the outer surface, with the basal half 

 calcified, white, and nearly opaque. The distal half is mostly 



