304 
REPORT—1850. 
No. of living} No. of dead 
Species obtained. specimens. | specimens. Observations. 
Trochus exiguus ............) ΝΣ 4 
conulus, Var...........65 Ϊ Goh fe literer eas small. 
Ξξεεη εν παρα ancs-ce cal sumiew adtl 5 small, ribbed. 
Turritella tricostalis ......... 3 
Cerithium vulgatum, var. ... 6 
mee TOUICUIATUIN <2. 2ccccs00+|  seceee 1 
PETVEFSUM ...00..-s00000 | 2 
Pleurotoma lineare ......... 2 
Fusus pulchellus ............ 3 
Murex crispata ............... τς ἦτον 1 
Cassis 810 οϑᾶ......ννννννννννον lee rest 1 with hermit crab. 
Mitra columbellaria ......... 1 
Marginella miliacea ......... | 1 several. 
Ἐ--- ΒΕΟΔΙΙΠΒ ccansincssescnsuel 2 1 
Ringuicula auriculata......... lmao sashes few. 
Cypraea europea........e..c006) sees 1 
Ditrupa subulata ............ ho ara fragments. 
op cats coe sbecesecons ἘΠῸῸ 2° ᾿ |notched aperture. 
A small species of Echinus..| several 
Ophiure ...,....... Τ λιν τ. ἢ several. 
Spatangus purpureus ......... ἰώ esse 1 
Various corals. 
Actiniz. 
In sailing from the Balearic Islands 
to Gibraltar 1 observed Ianthina nitens, 
not unfrequent, and occasionally with spawn attached ; also Velella and “oe a 
Pteropoda become more rare proceeding eastward. 
Lisbon, 10th of August, sand and mud, 7 to 12 fathoms, strong tide. 
Corbula nucleus. 
Syndosmya alba. 
Lutraria oblonga (dead). 
Mactra subtruncata. 
Cardium ciliare. 
Nucula nitida. 
nucleus. 
Pecten polymorphus—dark colour, 
gy- northern limit ὃ 
varius. 
opercularis. 
Ostrea edulis. 
Anomia ephippium. 
Chiton rufus. 
Bulla akera, var. ? 
fragilis ?—shore, living. 
Chemnitzia elegantissima. 
gracilis pi 
Odostomia conoidea ?. 
new (brown). 
Rissoa monodonta. 
Sealaria clathratulus. 
Trochus millegranus (young). 
——. ziziphinus. 
—— umbilicaris (dead). 
Littorina rudis—dead, one. 
Cerithium reticulatum. 
Pleurotoma coarctatum. 
Nassa macula. 
varicosa. 
Murex erinaceus. 
At Cintra I found the following few land shells, 6th to 8th of August :— 
Helix lactea. 
aspersa. 
hortensis—most southern loca- 
lity I have observed it in. 
—— pisana. 
caperata. 
spurca. 
barbula. 
polentina. 
cellaria. 
—— crystallina. 
Helix umbilicata. 
Bulimus acutus. 
obtusus. 
decollatus. 
Pupa muscorum? I believe a distinct 
species, more elongated, having an 
extra whorl and an extra tooth. 
——, minute. 
Clausilia rugosa? (slender). 
Balea perversa, gy. southern limit ? 
ee ee eee 
