108 { REPORT—1857. 
LAMELLIBRANCHIATA, 
Tellinide. Tellina fabula......... * 1. Cardiade, 
Veneride. Venus striolata ...... * d. 
GASTEROPODA. 
Fissurellide. Fissurella reticulata. + d. Naticide. 
Trochide. Trochus cinerarius... * d. Muricide. 
tumidus.......++ * d. 
Cardium nodosum... * J, 
Natica nitida ......... * 2. 
Nassa incrassata...... * d, 
In the open channel opposite to the entrance of Strangford Lough, the 
results of dredging indicated very regular distribution of materials through- 
out a distance of seven miles from the bar. 
1. From the bar to one mile—more or less—large stones with a mixture of 
fragments about the size of the fist. 
2. Two miles—more or less—from the bar, gravel, small stones, and 
shell sand. 
3. Three miles—more or less—from the bar, gravel with dead and living 
mollusea, and fine debris of shells. 
4. Four to five miles from the bar, sand and mud, with a smaller pro- 
portion of dead and living molluscea. 
5. Six miles—more or Mless=from the bar, fine mud and sand. 
6. Seven miles from the bar—more or less—fine black tenacious mud, 
with one living bivalve (Syndosmya intermedia), and Brissus lyrifer. 
It need scarcely be stated, that the powerful currents which issue from the 
narrow opening of the Lough, in some measure account for these pecu- 
liarities, the lightest materials being carried farthest and deposited at a 
distance from the bar. 
Mollusca of First Zone, 12 fathoms. 
Acmea virginea, * 7, 
Cyprina oe “6 
Circe minima......... 
Astarte suleata ...... 
triangularis .. 
Cardium nodosutn., 
pygmeum ., 
Norvegicum 
Lucina borealis ... 
* * Whee £: t+: eae 
ALAA 
ss 
Kellia suborbicularis 
Montacuta substriata 
Nucula nucleus ...... 
Pectunculus elyoyaam 
Modiola modiolus .. 
Q™ 
* 
phaseolina? . 
SPAS 
. 
Lima Loscombii...... 
Pecten similis......... 
VATIUS. ..sseeeeees 
—— opercularis...... 
eeepy, 
tf 
3 
t 
* 
Maximus «so F 
* 
Pali 
ot 
* 
wt 
my teg 
tigrinus seseeeees 
Ostrea edulis ........ 
Anomia striata ..... 
— ephippium... 
— patelliformis .. a 
1. 
1, 
l, 
I, 
Chiton ruber, ¢ 7. | Chiton asellus,* 7. | 
Mollusca of Second and Third Zones, 12 to 15 fathoms. 
LAMELLIBRANCHIATA, 
Gastrochenide., Saxicava rugosa... * 1. Cyprinide. 
—— arctica .-..... Pa a? 
Myade. Mya truncata......... $ d. 
Corbulide. Corbula nucleus...... 4 el? 
Pandoride. Pandora obtusa...... {| d. Cardiade. 
Anatinide. Thracia phaseolina.., ¢ d. 
Solenide. Solen siliqua ......... + d. 
—— ENSIS ...0000000e Td. Lucinide, 
Solecurtide. Solecurtuscoarctatus { d. Kelliade. 
candidus ...... td. 
Tellinide. ‘Tellina crassa...... . td. Arcade, 
—fabula ......... pe 
PsammobiaFerroensist d. Mytilide, 
—tellinella ..... at Fad, 
Syndosmya prismaticat 7. Ostreade. 
Mactride. Mactraelliptica...... * J, 
: Lutraria elliptica ... * 2 
Veneride. Tapes virginea ...... lh 
P Venus casina ......... t d. 
fasciata .......6. Pil 
— striatula ...... sige? 
ovata... .. Decoder * d, 
Artemis exoleta ...... + d. 
—— lincta...... Spake - + 1 
BRACHIOPODA, 
Terebratulide, Terebratula caput-serpentis,{ 7, Craniade, Crania anomala... } 7, 
