323 



" This locality seems to me an interesting one on account of the 

 large mass of the deposit and its remarkable exemption from 

 foreign matters, as well as the extraordinary size and distinctness 

 of most of the included forms. I hope from future examinations 

 to be able to present a more complete account of the locality, and 

 of its interesting microscopic remains." 



Dr. A. A. Gould presented the following descriptions of 

 new shells collected by the United States North Pacific 

 Exploring Expedition : — 



Terebratula transversa. T. reniformis, distorta, trans- 

 versa, tenuis, rufo-flavescens, punctata, costis radiantibus angu- 

 latis ornata ; valvis flexuosis, convexiusculis lateraliter angulatis ; 

 margine cardinali recto ; apice vix eminente ; foramine magno 

 interrupto ; apophysi libero, imprimis exili deinde aculeo diver- 

 gente munito, denique membranaceo et in laqueo recurvo pro- 

 tracto. Long. 6 ; diam. transv. 8 ; lat. 4 poll. Inhabits Hakodadi 

 Bay. W. S. 



Like T. Grayi as to form, color, and sculpture; the internal 

 supports are much shorter, and the diverging processes and mem- 

 branous loop are also characteristic. 



Terebratella miniata. T. magna, rhomboideo-ovalis, glo- 

 boso-lenticularis, punctata, striis incrementi solum insculpta, min- 

 iata ; valva ventrali ventricosa, sulco mediano modico fluctuata, 

 costa acuta mediana intus munita ; margine postico vix angulato ; 

 valva dorsali tectiformi, antice subtruncata, postice rostrata ; fo- 

 ramine modico, integro ; apophysi primo gracili, dein subito late 

 expanso et ad cristam medianam affixo, denique reflexo et la- 

 queam efformante. Diam. long, et transv. 1.5 poll. ; alt. ^ poll. 

 Inhabits Hakodadi Bay. W. S. 



In size, form, and color much like T. rubra or Zelandica, but 

 less fan-shaped and entirely destitute of radiating furrows or ribs. 

 The surface is like T. lenticularis, but is proportionally shorter 

 and trilobately waved. It is, moreover, generically distinct by 

 the union of its apophyses with the central crest. 



Rhynconella lucid a. T. subcircularis, tenuissima, lucida, 

 dilute cornea, valvis subaequalibus, ventricosis, impunctatis, sub 



