208 Miscellaneous. 



Hab. Bay of Manila (found in sandy mud at the depth of four 

 fathoms) ; Cuming. 



Mangelia pura. Mang. testd oblongo-ovatd, spird subturritd, 

 suturis profundis ; anfractibus concentrice costatis ; albidd,maculis 

 perpaucis aurantio-fuscis. 



Hab. ? 



Mangelia solida. Mang. testd cylindraceo-ovatd, utrinque atte- 

 nuatd, solidd, undique creberrime granoso-clathratd ; aperturd 

 longiuscutd ; purpurascente . 

 Hab. Island of Burias, Philippines (among sand at the depth of 

 seven fathoms) ; Cuming. 



Mangelia derelicta. Mang. testd ovatd, longitudinaliter fortiter 

 concentrice costatd, transversim subobsolefe striatd ; fuscescente. 

 Hab. ? 



Mangelia zebuensis. Mang. testd ov at o- oblong a, spird acumi- 

 natd, basi subattenuatd, concentrice fortiter costatd, transversim 

 creberrime striatd ; fuscescente. 



Hab. Island of Zebu, Philippines (found in sandy mud at the 

 depth of four fathoms) ; Cuming. 



Mangelia cincta. Mang. testd subfusiformi- ovatd, spird turritd, 

 suturis subprofundis ; anfractibus superne angulatis, longitudina • 

 liter costatis, costis distantibus ; albidd, anfractibus fascid latd 

 fuscescente superne cinctis. 



Hab. Island of Bohol, Philippines (found under stones at low 

 water) ; Cuming. 



Mangelia digitalis. Mang. testd fusiformi- ovatd, solidd f undique 

 creberrime granoso-clathratd ; albicante, zonis duabus purpureis 

 angustis cingulatd. 



Hab. ? 



Mangelia nana. Mang. testd ovatd, spird brevi, turritd, apice 

 acutd; anfractibus superne angulatis, longitudinaliter oblique cos- 

 tatis, interstitiis cavis, subtiliter striatis. 



Hab. Island of Mindanao, Philippines (found in sandy mud at the 

 depth of twenty-five fathoms) ; Cuming. 



MISCELLANEOUS. 



ON THE DEVELOPMENT OF THE MEDUSAE. 



Dr. Reid directed the attention of the Society to some observations 

 he had made on the young of the Medusae. He mentioned, that many 

 of the members of the Society were probably not aware, that the re- 

 searches of Sars and Siebold had shown that the young of the Me- 

 dusae (the common sea-nettles and sea-blubber of our coasts) live 

 for a time like polypes ; and that, during their polype life, they ge- 

 nerate other animals like themselves, all of which afterwards become 

 Medusa?. This very curious fact has of late naturally attracted a 



