22 



Dr. MacCuUoch has also attributed it to the latter cause ; and 

 Btates that every marine animal that he has examined is luminous. 

 Assuming the observations of M. Bory de St. Vincent and those of 

 Dr. MacCuUoch to be eąually correct in the instances vvhich fell 

 under their notice, it is worthy of inąuiry \vhether any, and \vhat, 

 difFerences exist in the luminosity of the ocean, ■vvhen it is occasioned 

 by marine animals, or when it is owing to other causes. 



Mr. Yarrell exhibited a female of the common game Foįvl which 

 had assumed the plumage of a malė. The dull brown colour of 

 the breast \vas varied by an intermixture of the jet black plumage 

 peculiar to the malė ; the feathers of the neck and those on the sides 

 of the tail \vere long, slender, hackled and bright in colour ; all the 

 tail feathers were more or less curved ; and the s))urs were half an 

 inch in length. This bird very closely resembled the representation 

 attached to Dr. Butter's paper on this subject in the third volume 

 of the " Memoirs of the \Vernerian Society." A portion of the 

 body of the bird was also shown, the disease of the sexual organ 

 pointed out, and its appearance contrasted \vith preparations of the 

 šame parts from healthy birds. The cause of this change in the 

 external character is fully detailed in John Hunter's " Animal Eco- 

 nomy," in the Wernerian Memoirs before mentioned, and in a paper 

 by Mr. Yarrell, published in the " Philosophical Transactions " for 

 1827. 



Mr. Vigors resumed the exhibition of the birds from the Hima- 

 layan Mountains, M'hich he had commenced at the Meeting of the 

 23rd Nov. ; and named and characterized the following apparently 

 new species : 



Alcedo guttatus. Ale. crisiatus, supra ater, maculis rohindis 

 albis guttatim notatus ; subtus albus ; colli lateribus pectoreque 

 atro maculatis. 



Statura Ale. maxhni. 



MusciPETA PRiNCEPS. Muse. capite, colio, dorso summo, alis, 

 rectrieibusgue duabus mediis nigris ; corpore inferiori, dorso imo, 

 fascici latd alarmn, maculis paucis remigum secundariarum, rec- 

 trieibusgue lateralibus aurantio-coccineis ; rastro f ortiori. 



Longitudo circiter 9 uncias. 



Lanius erythropterus. Mas. Lan. nuehd dorsogue griseis ; 

 capite supra, alis, cauddąue atris ; corpore subtus, strigd superci- 

 liari, remigumque apieibus albis ; alis maeuld latd rubrd notatis. 



Fcem. Capite griseo ; dorso, alis, rectrieibusgue virescenti-olivaceo 

 notatis ; harum apieibus Jlavis. 



Statura Lan. Collurionis. 



Parus monticolus. Par. capite, eollo, pectore, abdomine medio, 

 alis, rectrieibusgue atris ; genarum maeuld latd nuchaligue parvd, 

 tegminum remigum secundariarum rectricumgue apieibus, et remi- 

 gum primariarum rectricumgue lateralium pogoniis externis albis ; 

 abdominis lateribus jlavis. 



Statura paulo minor Par. majori. 



