Fossils from the Upper Musashino of Kazusa and Shimosa. 



40. Bela.rug-ulata Tros. var» 



sclmeideri Harm. 



41. Bela recticostulata Yok. 



Family Cancellariidae. 



42. Cancellaria spengleriana 



Desh. 



43. Cancellaria nodnlifera 



Sow. 



44. Cancellaria aspenila Lam. 



var. reeveana Crosse. 



Family Olividae. 



45. Olivella forfcnnei (Ad.) 



46. Olivella spretoides Yok. 



47. Ancilla hinomotoensis 



Yok. 



Family Marginellidae. 



48. Marginella cotamago Yok 



49. Marginella perovulum 



Yok. 

 Family I 'olutidae. 



50. Voluta megaspira Sow. 



Family Mitridae. 



51. Mitra hondana Yok. 

 62. Mitra pirnla Yok. 



Family Fascial ariidae. 



53. Fusus perplexns Adams. 



54. Fusus coreanicus Smith. 



55. Fusus niponicus Smith. 



Family Buccinidae. 



56. Chrvsodomus arthriticus 



Val. 



57. Chrysodomus schrencki 



Yok. 



58. Sipho obesiformis Yok. 



59. Sipho (Parasipho) nip- 



ponicus Yok. 



60. Siphonalia spadicea Eve. 



61. Siphonalia trochulus Eve. 



62. Siphonalia kellettii 



Forbes. 



63. Volutharpa perryi Jay. 



64. Eburna japonica Eve. 



+ .. + + + + + 



+ .. + .. + + .. 



+ + + • . 



+ + + + + + .. 



+ . . 



+ . . 



+ . . 



+ . . 



+ + 



+ . . 



. . . . • + . . 



++....+++ 



+ + + • • 



+ + 



+ + + + + + .. 



+ + 



+ + 



+ 



+ . . 



+ + + .. + + + 

 + . . 



+ + + + 



+ + . . . . + • . . . 



LIVING 



(Fossil in English Crag). 



From Central .Japan to Aus- 

 tralia. 

 Central and Western Japan. 



From Central Japan to Philip- 

 pines. 



Central Japan. China. 



Central Japan. 



Northern, Central and Western 

 Japan. 



Northern, Central and Western 



Japan. 

 Western Japan. 

 Central Japan (52 fathoms). 



Northern Japan. 

 Northern .Japan. 



(Very close to S. Kroeyeri Moll. 



of the Arctic). 

 Northern and Central Japan. 

 Central Japan. 

 Central to Southern Japan. 



California. 

 Northern and Central Japan. 

 Northern to Southern Japan.j 



