Bartsch.— A new SHimvoRM from chile 147 



ñ NEW 5HIFW0RM FROM CítlLH 



Paul BARTSCHO 



In a small collection sent to the IJ. S. National Mu- 

 seum for identification by Dr. Carlos E. Porter (of San- 

 tiago, Chile), is a new shipworm which was collected by 

 Mr. Luis Moreira on Chiloé Island in January, 1923. The 

 species isnearest relatedto Banláa (BanliaJ setaceaGoyuAt 

 from the north west coast of America, but differs markedly 

 from it, as will be pointed out in the description which 

 follows. It may be called: 



Bankia (Bankia) chiloensis, n. sp. (**) 



(The Chiloe Shipwoni) 



Shell moderately large with the anterior área and 

 the anterior and middle parts of the median área suffused 

 with palé rose color. The anterior margin of the anterior 

 part is covered by a thin, smooth callus, from which the 

 dental ridges radíate fanlique posteriorly. These ridges are 

 closely spaced in the raiddle, where they are separated 

 by about three times the distance of the width of the rid- 

 ges at their posterior extremity; in the oíd age stage they 

 again become approximated quite closely. The ridges are 

 truncated abruptly dorsally and slope gently ventrally, 

 the free angles being finely denticulated. 49 of these rid- 

 ges are present in the type, although so me of the earlier 

 ones have undoubtedly been lost by erosión at the sumit 

 of the umbones. The anterior median portion is rather 



(*) Published by permission of the Secretary of the Smithsonian 

 Institution. 



(**| Es este el Teredínido a que nos referimos en nuestra breve 

 nota: Algunos invertebrados de Rio Inio. en la pág. 19 del presente tomo. 

 (jSTota de la EkdacciónI. 



