NATURAL SCIENCES OF PHILADELPHIA. 479 



Ilab. Mediterranean Sea. 



Description. " Coquille a peu pres semblable a celle de T. navalis mais 

 plus petite, a peu pres aussi haute que large ; oreillette anterieure portant 

 plus de soixante stries ; oreillette posterieure moins abaissee que chez le T. 

 navalis. 



" Palettes courtes, ressemblant a un petit epi d'orge forrnces de buit a dix 

 godets courts, coniprimes, imbriques, denticules a leur bord inferieur et le plus 

 souvent noiratres. Epines laterales peu developpees. Pedicule cylindrique, 

 giele, blanc, un peu plus long que la palette. 



" Ob'serv. Cette charmant espece n'attient jamais de grandes dimensions, 

 mais ses ravages n'en sont pas moins redoutables; car elle abonde dans les 

 lieux ou elle vit." Fischer, clesc. of T. Philippii. 



Fischer separates Philippii from minima, and remarks that the latter is 

 described from a young shell. Jeffreys unites the two, giving the preference 

 to Blainville's name, as the oldest which is not pre-occupied. 



X. m i n i m a is thus described in Journ. Conchyl. p. 256. 



" Coquille extrimement petite, a peu pres aussi haute que large; oreillette 

 et zone anterieures plus grandes que les posterieures ; stries tres nombreuses, 

 presque egalernent, serrees et espacees sur les deux cotes de Tangle anterieur. 



"Palettes portees sur un tres-long pedicule et formc-es de douze articula- 

 tions en godets, non epineuses sur les cotes." Fischer. 



X. palmulata, Lamarck (sp.). 



Teredo palmulata, Lamarck, Anim. sans. Vert. v. p. 440; id. 2d edit, 

 vi. p. 38. Blainville, Man. Malacol. t. 80, bis, f. 8. Catlow, Conch. 

 Nomenc. p. 3. Chenu, Man. Conchyl. ii. f. 64, 65. Cuvier, Regne 

 Anim. edit. Griffith, xii. t. 7, f. 5. Ferussac, Encyc. Meth. p. 1004. 

 Fischer, Journ. Conchyl. 2d ser. i. p. 254. Hanley, Desc. Cat. p. 4, 

 t. 11, f. 13. Quatrefages, An. des Sc. Nat. 2d ser. xi. p. 29. 

 X. palmulata, Adams, Genera, ii. p. 333, t. 90, f. 6e. 

 X. bipalmulata, Gray, Ann. and Mag. Nat. Hist. 2d ser. viii. p. 386. 

 T. bipalmulata, Lamarck, Syst. Anim. sans. Vert. p. 129. Bosc, Hist. 

 Coq. ii. p. 202, Gray, Phil. Mag., 1827, p. 410. 

 Ture.t de Pondiche'ri, Adanson, Mem. Acad, des Sc, 1759, p. 278, t. 9, f. 12. 

 Ho '. East Indies. 



Description. The valves and tubes of this species are unknown, and but 

 two specimens of the pallets exist in European collections ; from one of these 

 pallets (that in the Jardin des Plantes) Lamarck's description is taken,* which 

 in fulness of detail and accuracy is scarcely inferior to the description of T. 

 navalis, by Linnaeus. 



The pallets are quite large, the blade composed of twenty or more triangu- 

 lar joints, which are attenuated laterally into sharp projecting points. The 

 stalks are somewhat shorter than the pallets, moderately thick, rounded, and 

 about one-third the width of the blade. Total length about one inch. 



Mr. Jeffreys remarks that they are "allied to the pallets of T. b i p e n n a t a, 

 although evidently distinct." 



This species is not the T. palmulata of Forbes and Hanley, nor of 

 Philippi. * 



X. pennatifera, Blainville (sp.) 



Teredo pennatifera, Blainville, Diet, des Sc. Nat. Hi. p. 269. 



X. pennatifera, Adams, Genera, ii. p. 333. Jeffreys, Ann. and Mag. Nat. 



Hist. 3d ser. vi. p. 126. 

 X. pennatifera, (part.) Gray, Ann. and Masr. Nat. Hist. 2d ser. viii. 



p. 386. 



* "T. p:\lmulis longiusculis, pimato-ciliatis, subarticulatis." Lam. 



1862.] 



