Ostracoda of the SciUy Islands. 



115 



aspect of the group is such as we should expect in any average 

 British dredging. Tliere is a distinct absence of the charac- 

 teristic northern forms, and an ahiiost equal want of such 

 species as Cythere emaciata, Bairdia acantldgera^ &c., which 

 find their greatest development on the south coast. Cijthere 

 lutea, a common species of both the littoral and laminarian 

 zones in most (and more especially in the northern) districts of 

 Britain, is also wanting. 



The following list embraces all the species found in our 

 dredgings amongst the Scilly Islands, and in a littoral gather- 

 ing of muddy sand from St. Mary's. The localities dredged 

 were as follows : — off Porcressa Bay, St. Mary's, 20-30 

 fathoms, hard sand ; S.W. off St. Agnes, 40 fathoms, hard 

 sand, rock, and nullipore ; inside St. Mary's and St. Agnes, 

 8-10 fathoms, hard sand ; New Grimsby Harbour, 10-14 

 fathoms, muddy sand. 



Pontocypris raytiloides {Norman). 



trigonella, G. O. Sm-x. 



Paracypris polita, G. O. Sars. 

 Cytliere vividis, Midler. 



alljomaciilata, Baird. 



pellucida, Baird. 



castanea, G. O. Sars. 



porcellanea, Brady. 



Macallana, B. i^- R. 



badia, Norman. 



crispata, Brady. 



Robertsoni, Brady. 



villosa (G. O. Sars). 



convexa, Baird. 



— — oblon<ra, Brady. 



cimeiformis, Brady, 



laticarina, Brady. 



emaciata, Brady. 



aBtiquata (Baird). 



semipunctata, Brady. 



Cytlieridea cornea, B. 8f R. 



eloiigata, Brady. 



Eucythei'e Argus {G. O. Sars). 



declivis (Norman). 



Ijoxoconcha impressa (Baird). 



gi-anulata, G. O. Sars. 



multifora (Nm-man). 



tamarindus (Jones). 



Xestolebcris depressa, G. O. Sars. 



labiata, n. sp. 



aurantia (Baird). 



Cytlienira nigrescens (Baird). 



similis, G. O. Sars. 



Sarsii, Brady. 



fulva, n. sp. 



Cytherura flavescens, Brady. 



coruuta, Brady. 



gibba (Midler). 



cuneata, Brady, 



striata, G. O. Sars. 



augulata, Brady. 



producta, Brady. 



acuticostata, G. O. Sars. 



cellulosa (A'^orman). 



Pseudocythere caudata, G. O. Sars, 



Cytheropterou nodosuiu, Brady. 



siibcircinatum, G. O. Sars, 



latissimum (Norman), 



n. sp. ? 



Bytbocythere constricta, G, O. Sars. 



turgida, G. O. Sars. 



Cytberideis subulata, Brady (var. 



fasciata). 

 Sclerocbilus contortus (Norman). 

 Paradoxostoma abbreviatum, G, O. 

 Sars. 



variabile (Baird). 



eiisiforoie, Brady. 



cuneatmii, n. sp. 



bibernicum, Brady. 



Normaui, Brady. 



Fiscberi, G. O. Sars, 



— '— arcuatuni, Brady. 



flexuosiini, Brady. 



obliquum, G. (). Sars. 



Asterope Mariaj (Baird). 



teres (Nornian). 



Pbilomedes intcrpuncta (Baird). 

 Polycope compressa, B. ^- li. 



