274 REPORT—1850. 
No. of living] No. of dead 
Species obtained, specimens. | specimens. Observations. 
Lutraria elliptica..........00...| ~~ sees. 1 valve. 
Dapes-Wireinea..........+..0..200 3 abundant. 
Cytherea chione .........00065:] τος valves. 
WEMGWENG τ: τοις πνεῖν ᾽ς ossaes 1 valve. 
Venus fasciata..............006 6 
—————ICABING “οἱ νους ἐν οδόξοι δεν 6.2} Saves 1 
OVEGA |. .casnasonseresuasya> 2 
—— striatula..............006- 1 
RENCE WIND. ccanssa.casenceme 5 
Astarte triangularis .........} ...... valves. 
Cardium papillosum .........) 22... 1 & valves. 
Lucina digitalis ..............+ 2 
Kellia suborbicularis .........)  .....+ 1 valve. | 
Modiola tulipa...........20000.. 1 
Nucula nucleus ............+6. 1 | 
PAI ~ .cvccncestceveseey 8 
CUR NUUIAbAscasacyccsssces ssceethn sactecs a valve. 
AYCA CEWUHPONA ᾿ς Jasssceosccts| —scoace valves 
ἘΞ lactea .....cceccecceceseees 2 
Pectunculus glycimeris ...... 1 1 
Lima subauriculata............)  ...00 1 valve. 
Pecten maximus ............0.. 3 
— opercularis ............... TOF: ioe cers ss small. 
—folymorpius cn] 8 | ΠῚ inact inerusted with sponges, ὅδ. 
Ostrea edulis ........«οονονονον abundant. 
Anomia ephippium ............ abundant. 
ΘΗ τὴν ΡΥ 2 :- o<cccsssecesnsas 2 
Fissurella graeca ..........00... segelee 1 
Calyptreea vulgaris ............ numerous. 
ALCINGA VIFGINER |. secccscesssccel, . ἐμ, ταν 1 
Bulla truncata, ..<...:<..scsswes! πες 1 
Natica Alderi ..:.....0.cceasee i 2 
Trochus magus .......0..00... 3 several. 
ZIZIPHINUS ..,..5..00c000 5 
— Montagui .......0...... 2 
Turritella tricostalis .........| numerous. 
ΙΕ ΘΡΟΉΠΕ racesaecsaxesstevess|" ΔΎ Ἂς 8 
Marginella miliacea .........] se... 2 
Murex erinaceus .......0......- 7 
CYIRtATUS!.viswetticssssests 10 
(PEHtON NOMIUMETOM? 0. .Ὁ 0 ν0:..} cavens 2 
Nassa VaricOsa........seee...005 1 1 
reticulata” 5 ..cc0c...00c- 2 
Buccinum minus............+5- 2 
Ringuicula auriculata .........|  ...00e 3 
Amphioxus lanceolatus ...... 7 
Echinus, 2 species. 
Ophiure, &c. 
On the 24th of April, in the Strait of Gibraltar, the water was teeming 
with Salpze, generally in the form of double chains ; the individuals varying 
in size from a quarter of an inch or less to three inches in length. The 
.opake part of the smaller was blue, of the larger brown. They were very 
phosphorescent when agitated in water. Various small and beautiful Me- 
dusz. Near the entrance of the Bay of Gibraltar I put down the dredge in 
130 fathoms of water, but had the greatest difficulty in recovering it from a 
rocky bottom, and obtained nothing. ι 
I spent a full fortnight in Gibraltar (on my way out and home), and 
dredged more or less nearly every day: bottom sand and mud. 
