18 THE NAUTILUS. 



In Bull. No. 3, Vol. II, of the Chicago Academy of Sciences, the 

 writer published an account of the anatomy of Limncea emarginata 

 var. Mighelsi in which several errors appeared. The first was the 

 position of the kidney and ureter as figured on plate VI. K. U. An 

 examination of a larger and more perfect specimen shows the shape 

 and position to he different, the ureter really proceeding from the 

 anterior end and extending in a straight line to the edge of the 

 mantle. It is needless to add that the renal organs, as figured on 

 this plate, do not exist in the fresh water pulmonates. 



On plate III of the same paper is given a figure of the genitalia 

 in which a flagelluin is described (E. F.). This is the vas deferens 

 and the duct thought to be the vas deferens is the penis retractor 

 muscle. 



NEW LAND SHELLS FROM THE LOO CHOO ISLANDS AND JAPAN. 



BY HENRY A. 1MLSBKY. 



Mr. Hirase, continuing his researches, has recently taken steps to 

 procure shells of the Loo Choo Islands; some of the first-fruits being 

 noticed below. He writes: " I have sent two able collectors, in the 

 hope that I may procure for study the land shells of Kiushiu 'And 

 Loo Choo. They were sent at first, on February 23d last, to 

 Yaeyama, in the Loo Choos, for a stay of two months ; but because of 

 malaria they were obliged to leave, and thus spent only twenty days 

 there. They are now working in the neighboring island of Nawa, 

 in the Loo Choo group." 



Among the species sent from Yaeyama are Clausilia hyperoptyx 

 Pils., C. Stearnsii Pils., Bijidaria armigeretta Reinh., and Georissa 

 japonica Pils. The last two species were originally described from 

 the main island of Japan, Hondo ; and their occurrence in the 

 middle Loo Choo group extends their distribution notably. The 

 specimens are, however, quite typical. The finding of a typical 

 species of the Chinese group BuUminopsis, B. meiacoshimensis A. & 

 P., which Mr. Hirase sends from Yaeyama Island, and a species of 

 Tornatellina, is extremely interesting. The latter genus has not 

 been reported nearer than Luzon, so far as I know; Of Buliminop- 

 sis two species have been described from the Loo Choo Is., B. 

 meiacosliimensis Adams and Reeve, described as a Bulimus, and 



