COLLINGE : ON ANATOMY OF AMPHIDROMUS. 



alb. g 

 an. 

 ap. 

 an. 

 b. c. 



b. r. 



c. in. 

 ep. 



fl- 



f.ov. 

 f.p. 

 h. d. 

 h. gl. 

 k. 



I. 0. r 

 ce. 

 ov. 

 P- 



A- 



EXPLANATION OF PLATE IV. 



Amphidromus pcclaceus, Mouss. 



Lateral view of the buccal mass and oesophagus. x i^. 



Ventral view of the same. xi/4- 



The generative organs, x i^. 



Penis dissected to show the fleshy papilla and internal wall. 



Vagina dissected to show the internal structure. 



Eetractor muscles. 



Portion of the pal Hal complex. x i. 



Reference Letters. 



Albumen gland. 



Anal aperture. 



Appendix. 



Auricle. 



Buccal cavity. 



Buccal retractor. 



Columellar muscle. 



Epiphallus. 



Flagellum. 



Free-oviduct. 



Fleshy-papilla. 



Hermaphrodite duct. 



Hermaphrodite gland. 



Kidney. 



Left ocular retractor. 



CEsophagus. 



Oviduct. 



Penis. 



Pericardium. 



DESCRIPTION OF TWO NEW SPECIES OF 

 MICROPARMARION FROM THE ANDAMAN ISLANDS: 



A CORRECTION. 



By WALTER E. COLLINGE, 

 The University, Birmingham. 



By a regrettable error, the two new species of Microparniarion (M, 

 m'dlletidorjffi and M. a?idamanica) described in this Journal in March 

 last (p. 1 6) were stated to have come from the Andaman Islands. 

 Dr. O. F. von Mollendorfif, however, writes me " they came from 

 Annam, where Mr. Roebelen collected them. A distinct locality was 

 not given, but they are from the Mekong valley." {in litt. April 6th.) 



Unfortunate as the name of the second species is, it appears 

 better to allow it to remain. 



