﻿E I( E I) 0. 



IK IV. 



Species I.-.. (Fig. „, i, r, Mus. liril.) 



EDO i-ALJU'l.ATA. Ter. lestd parvd, rutimdd; au- 

 /■/.«/,( jiuslicd el area untied produotis, rotundis, 

 arei.t ctntralibus laiis, hreviusculU ; proee^su suli- 

 umbonali curvo, expanso. Sti/lix cortieii', Irevibut!, 

 spieiformibiig, stqmld Imujitvdine mquali. 

 PAi.MULATEi) Tebkdo. Shell Small, rounded, pos- 

 terior auricle and anterior area produced, 

 rounded ; central areas broad, rather short ; snb- 

 unibonal process curved, expanded. Styles 

 horny, short wheat-eai'-shaped, stem of e(jual 

 leng-th. 



\RCK. Anini. sans. \'ert. 

 do ■minima. I31aii,vill.>. 

 do hipalmata. Dclle Chiajc. 

 do Philipfdi. Fisher. 

 . Ireland, Ens^land, &c. In iloatinif wood. 



Species 16. (Fig. a, h, c, Mna. Brit.) 



Teredo Sengalensis. Ter. testd pared ; luld rHgond, 

 versus ternilnum siphoHalcm alleimatd ; palmulis 

 hreviter spathulatis, cxliis hicaririalis; atipuld 



The Se.negal Teredo. Shell small ; tube rough, 

 attenuated towards the siphonal end ; pallets 

 shortly spatulate, bicarinated outside, with very 

 short stem. 

 Blaixvillk. 

 Hah. Senegal coasts. 



Tubes in wood, and pallets which seem quite dis- 

 tinct in their characters from any other species, are 

 in the British Museum, without any specimens of 

 tlie valves. The species is referred to Teredo Nor- 

 rrijica by Jeffreys. 



Species 17. (Fi; 



6, c, Mus. Brit, and Sowb.) 



Tekedo Nucn-QKA. Ter. testd altd, angudissimd 

 utrinqiie latissim'e apertd; tulid eunturtd, 

 bulhij'ormi. 



The NUT-EATINC. TekkUu. Shell ln,<,'h, very narrc 

 thin, very widely ga|jing on botli sides ; ti 

 contorted, thick, bulb-shaped. 

 SpENGi.ER. Desh. Traite elem. PI. 'J, Fig. '.i, in. 

 Genus !',nn>l!s. Guettard. 

 Cartlrro ininruro. Gray. 

 Fistiiloiiii ■jrijiilii. Lamarck. 

 Teredo ijreijala. Sowerby. 

 Hal,. Isl. of France. 



This species pierces its way through the shelli 

 floating cocoa-nuts, and forms its contorted bot 

 shaped tubes in the interior. Several tubes 

 often found twisted together, and a specimen in 

 British Museum shows a mass of them coiled roi 

 each other in the very heart of a nut. Tlie wr 

 has not met with specimens of the pallets, but 

 valves are nariow and much curved. 



Species 18. (Fig. «, h, ,-, Mus. Brit.) 



Teredo DENTICULATA. Tr. /•■sfd hm-i, rnininl,!..<,,/iil,! : 

 ared auiied hrevissintii : niirieuJd jiuslir,! cloioiolii, 

 expansd, supra anguslatd, versus ninhmie/n in- 

 ciirvd; areis medianis latis, infra aiirienlant hre- 

 vibus ; umbouibus cnllosis, denticuhi .•jjtini/nnni 

 muniti.-- ; pahunlis .■^nbocfis. „d latmi ini„. 

 deiitieiiloll^, supra denies iteelieihiis, stipald br,. 



The denticdlated Teredo. Shell short, round, solid ; 

 anterior area very short ; posterior auricle elon- 

 gated, expanded, narrow above, curved inwards 

 towards the umbo ; middle areas broad, shoi't 

 below the auricles ; umboes callous, provided 

 with a spine-shaped denticle ; pallets subovate, 

 with a tooth at the sides, sloped above the teeth, 

 stem very short. 



Graij. MS. Brit. Mus. 



Hub. Britain? 



Species 19. (Fig. a, b, r, Mus. Brit.) 



Teredo DoNLori Ter. testd brevi, crassd, <jhdi( 

 striis iitonilifoniiibus scidptd ; ambouibiis ear 



