254 



12. IIypocnemis NjBVIoides. 



Conopophaga navioides, Lafr. 11. Z. 1847, p. 69; Bp.Consp. p. 203. 



$ . Rufo-einnamomea .• capite grisco : alis nigris, rufo-cinnamomeo 

 bifasciatis ; tectricibus minoribv.s albo guttulatis, primariarum 

 marginibus et secundarlarum apicibus pallide rufis : subtus alba, 

 gutlure et maculis crebris vittam pectoralem formantibus nigris : 

 rostro ?iigro, pedibus plumbeis. 

 ? . Gutlure albo : maculis pectoris evanescentibus. 

 Hab. Panama (Delattre) ; Mosquito Coast (Bell). 

 Mus. Derbianum. 



I have seen a pair of this species in the Derby Museum at Liver- 

 pool ; and the same bird is represented in some drawings by Mr. 

 Bell of the birds of the Mosquito Coast. 



2. Description of New Pinnae. By Sylvanus Hanley. 



Pinna Strangei. P. testa late trigona, satis valida, magis mi- 

 nusve ventricosa, carina centralis experte, livido-purpureo in cor- 

 neum colorem in/erne pallescente : triangulu dorsali costis per- 

 multis (circiter 20) angustis rotundatis et manifeste elevatis in- 

 structo ; triangulo ventrali lato, antice asperato et (in exemplis 

 eximiis) plicis magnis conspicuis undatis arete ornato, postice 

 laviusculo : margine ventrali antice subsinuato, postice aliquan- 

 tum pendulo, margini dorsali subrecto subcequali : extremitate 

 postica truncata, subretusa. 



Long. G, lat. 8£ poll. 



Hab. Sinus Moretonianus (Strange). 



Mus. Cuming. 



Although in adult examples the ribs appear unarmed and become 

 obsolete near the broader end of the shell, in all probability the im- 

 mature examples are spinous. The shagreening of the ventral tri- 

 angle is very conspicuous. 



Pinna Cumingii. P. testa late cuneiformi, satis valida, ventri- 

 cosa, carina centralis experte, fulva, brunneo-purpurascente 

 partim fucata, costis magnis rotundatis valde elevatis et equatnis 

 fornicatis maximis, qua; cava tubera denique fiunt, arete armatis, 

 instructa : squamis costisque areas ventralis (plicarum expertis) 

 minoribus : margine ventrali antice valde sinuato, postice pendulo, 

 margini dorsali concavo subaquali : extremitate postica subtrun- 

 cata, convexa. 



Long. 4^, lat. 7\ poll. 



Hab. Peruvia. 



Mus. Cuming. 



The description has been solely derived from the unique example 

 in Mr. Cuming's collection, and may consequently hereafter require 

 Borne little emendation. Almost the entire surface is covered with 

 ribs, of which there are from nine to eleven (two being smaller than 



