ON ZGEAN 
Murex cristatus. 
brevis.* 
fistulosus. 
Aporrhais pes-pelecani.* 
Nassa variabile. 
varicosa. 
granulata. 
prismatica. 
Columbella rustica.* 
linneei. 
gervillii. 
Mitra ebenus.* 
INVERTEBRATA. 
| Mitra savignii.* 
obsoleta.* 
granum.* 
Marginella clandestina.* 
secalina.* 
miliacea. 
Erato levis. 
Tornatella fasciata. 
Cypreea europea. 
Conus mediterraneus. ? 
Dentalium 9-costatum.* 
rubescens.* 

163 
Firtu Recion. 
From thirty-five to fifty-five fathoms, an extent of five fathoms more than 
the last, presents a well-marked fauna, and constitutes a fifth region. uct 
are much scarcer than in the last, but among its vegetable products are Ryti- 
phlea tinctoria, Chrysimenia uvaria, and Dictyomenia volubilis ; the last, 
which gives a marked character to the preceding zone, being rare in this. 
Echinodermata are frequent here, Zoophytes not abundant. Myriapora trun- 
cata is frequent. The bottom is very generally nullipore and shelly. Muddy 
bottoms are scarce. The Testacea most generally distributed are Nucula 
margaritacea, Pecten opercularis, and Turritella tricostata. Those most 
abounding in individuals are Nucula emarginata and striata, Cardium pa- 
pillosum, Cardita aculeata, and Dentalium 9-costatum. 
TESTACEA OF REGION V. 

Lamellibranchiata. 
Solen tenuis.* Cardium echinatum. 
antiquatus.* levigatum. 
Ligula boysii. papillosum. 
prismatica. Cardita squamiosa. 
Kellia suborbicularis.* trapezia. 
Corbula nucleus.* Arca lactea.* 
anatinoides. imbricata. 
Nezra cuspidata.* autiquata. 
costellata.* tetragona.* 
Pandora obtusa. Pectunculus pilosus. 
Lyonsia striata. ? Nucula polii. 
Saxicava arctica. * 
Psammobia discors. 
margaritacea.* 
emarginata.* 
ferroensis. striata.* 
Tellina donacina. Chama gryphoides. ? 
serrata. Modiola barbata.* 
balaustina.* tulipa.* 
Lucina commutata. discrepans. 
spinifera.* marmorata. 
Astarte incrassata. Lima squamosa. 
Cytherea venetiana. fragilis.* 
apicalis.* subauriculata. 
Venus verrucosa. cuneata. 
ovata. Pecten jacobeeus. 
fasciata. polymorphus.* 
M2 
