30 Dr. P. P. Carpenter on new Forms of Mollusca 



presso ; plica columellari valida, subantica, parieti haud contigua, 

 transversa. Long. '26, long. spir. *14, lat. *13, div. 40°. 



Hab. Neeah Bay ; rare (Swan). 



Var. pupiformis : anfr. primis valde depressis, planatis ; vertice 

 mamillato ; anfr. ult. normali. Specimen unicum, quasi monstru- 

 osum. Long. '19, long. spir. '1, lat. *12, div. 45°. 



44 b. Odostomia (?var.) Gouldii. 



O. testa solida, alba, ovoidea, marginibus spirse valde excurvatis ; 

 vert. nucl. decliviter immerso ; anfr. norm, v., subplanatis, suturis 

 valde impressis ; peripheria haud angulata ; basi excurvata, haud 

 tumida ; apertura ovata, postice parum constricta ; labro solido ; 

 labio conspicuo, rimam umbilicalem formante ; plica submediana, 

 solida, extante, haud declivi. Long. *23, long. spir. -13, lat. "1, 

 div. 30°. 



Hab. Neeah Bay; very rare (Swan). 



Agrees in some respects better with the diagnosis of O. gra- 

 vida, Gould, than do Col. Jewett's shells, from which it is pre- 

 sumed the species was described. These large forms appear 

 very variable. 



45. Odostomia nuciformis. 



0. testa magna, compacta, Isevi, solida, alba ; anfr. nucl. 1 . . . (erosis), 

 vertice submamillato ; anfr. norm, v., subplanatis, subelongatis ; 

 spira brevi, marginibus valde excurvatis ; basi elongata, haud ura- 

 bilicata ; apertura subovali, postice angusta ; labro solido ; labio 

 tenui ; plica antica, solida, obtusa, transversa, parietem haud attin- 

 gente. Long. "3, long. spir. "14, lat. *18, div. 70°. 



Hab. Neeah Bay; extremely rare (Swan). 



45 b. Odostomia (? var.) avellana. 



O. testa O. nuciformi indole simili, sed spira valde prolongata. 

 Long. '32, long. spir. •16', lat. "16, div. 50°. 



Hab. Neeah Bay; one specimen (Swan). 



Like a gigantic form of O. conoidalis. 



47. Odostomia tenuisculpta. 



O. testa ovoidea, subelevata, albida, tenui, diaphana ; anfr. nucl. 

 subverticaliter immersis, angustis ; norm, hi., parum tumidis, su- 

 turis impressis, sulculis spiralibus latioribus haud impressis, dis- 

 tantibus, in spira iii., circa basim rotundatam circ. vi. subobso- 

 letis ; apertura ovata ; plica acuta, declivi, parva, parieti contigua ; 

 labro acuto ; labio indistincto ; columella antice parum efFusa. 

 Long. -1, long. spir. -04, lat. OG, div. 60°. 



Hab. Neeah Bay ; one specimen (Swan) . 



