218 
PAGE. 
SUPPLEMENT TO THE CRAG MOLLUSCA. 
| 
: «| eb ele ia |e : 
Sie (Sy in tego Sy St I ol Sy es |S 
= \?8i 3/2/38 /818)/8 lel = S8iS5! 8 IS. E 
vo | a (Sel 4128/21 2/8 |S Sel 8 SalSs] ssl 2 REMARKS. 
S|Si(ESl ele /SiolSlols |s esies S| 21 2 
SIS e(OIElgleiae |S rage le 
BIS SSS lsh aie | Sie 2 le se 
CRIA Jala (ojala lo im jaie ja IA ja 
— SO = —S OO OO S$ | |) | | | | | | | | 
Saxicava carinata, S. Wood...... x ¢ 1] 204 |] 096 |! 250'|| o00'|| 000 |} 000} oc |} 20011 oc0 |} 00. |] 
Panopea Faujasii, Men de la|| , u x | x [LP gycimeris, Born, P. Aldrovandi, Phil. De- 
Groye eee sae [vee [wee | vee | wee | wee | one | soe | woe | woe | vee rivative in Red Crag. 
— P? Norvegica, Spengler ...)... 200 |! 23"I] aso |} 5 |} 88 |] off 88-1 88 [oon] oon II oon Il oo |] 2S [ono |} 8 || Wowie sens orally, 
Pholadomya hesterna, J. Sow....| x 3 
Shynenin omnia ® - » | f Sphenia Binghami of Crag Moll. S. ovata is a 
UR eee ewes ree eeeeeeree v Pacific shell. 
— Binghami, Zurt........0...| «+ 28 |] 2 || 000]! o00 |! 000 |} 200 |} 000 |} 660 |} 000 {| 000 |} 000 I} ooa |] 2 |} 2 ff 8 
Mya arenaria, Zinm............0..6] -- sas |} 2S |} 88 |} 98 |] 8 |] 88 |] 5 58 }] 38 |] se |] x 
— truncata, Linn. ..,......... 23 | cao |} 2 |] 88 |] se |] 38 |] Se |] 88 |] sei] xe I x x 
Pdments onan, Rat < - Only fragments in Red Crag, and these probably 
Meo mi cere 209 derivative. Not G. stliqua. 
The specimen of Pholadidea in Crag Moll., Tab.) 
Pholadidea papyracea, Solander| X |...) ... |... |... | cc. | vce | cee | vee | cee | ee | aoe x AOA T, fg. 28; 1s ieome tderivative eae 
; ai species being doubtful, it is excluded from 
the list. 
Pholas candida, Zann. ............ hs x x | x |x 
— crispata, Linm............... 009 }] 8 |] 28 |} 000 |} 00 |] 000 |] 38 |] 8 |] 88 |] 88 I] 3 HPoco |} 00 |} 2 x 
— brevis, S. Wood............. x 
— cylindrica, J. Sow.......... vs | x | Xx 
— dactylus ? Linm............. 90011 lh onc|} coo |] ogo |] 066: on0,|} oacel]'o001] ong)! 00 |] c00\H] con:|| 83 |] BS |] &8 
—— parva, Penit........erecrsssee 900 |] 040 |] &8 Ho09 ||.400 |] 200 |} 000 || 000 |} 060 |}a00 |] 660 |} o00'|} a0 |] 88 |} 8 |] & 
Gastrochena dubia, Penn . . bs The tubes only of both these species are found 
Tore fo Namewe aa he Alte [eee MOSSE sel dese haskell Pea | hel | Ray : a in the Red Crag, and it is probable that they 
yy HPENGLEY...... 000 |) &3. [1 000 |l000 |) 009 fl -ca6 |] oda |} a0 |] od0 |} 000 |} cao. |} 000 x are there only as derivatives. 
BRACHIOPODA. 
Lingula Dumortieri, Wyst ...... x P 
Discina fallens, S. Wood......... 4 |1/oG0 || G60" |'a00|'Sed 1}-o60 |llose |! o6e"||/a6a.|| od0'||'a80'| | cor | ooo |} cael) oaa-|l oad 
Argiope cistellula, S. Wood...... 545 | iol ioe Fac ise | een onal licers| honeel ocd Rees.) Poceall caret esealls leith 
Terebratulina caput-serpentis, 
Linn. Hp ivee | coe | vee [vee | cee | ove | wee | cee | vee | coe | coe | wee | X x x 
Terebratula grandis, Blumenb...) x | x | x oor 
Rhynchonella psittacea, Chemn 260 |)'ag0|) 2 53 |] 32 x x x x 
After rejecting species which are mentioned zz 2¢ as doubtful or undeterminable, and 
also every repetition of a species in the form of a variety, and rejecting from the Red 
Crag all species marked in the list as derivative, or as possibly or probably so, and (with 
the exceptions mentioned in the footnote') treating all ?’s as X’s, the result of the foregoing 
list is, as regards the Gasteropoda and Bivalvia, given on the following page: 
IT have made no analysis of the Scrobicularia Crag, as the fauna obtained from it is too 
meagre to make it worth while. 
1 The following species occurring in the columns of the list are rejected from the summary, viz. In 
the Cor. Crag, Pecten varius, Pecten niveus, Lima plicatula, Modiola modiolus, Artemis lentiformis, Tapes 
pullastra, and Thracia distorta. Pyramidclla leviuscula is also treated as not living. In the Walton 
Red Crag, Lapes pullastra, Cyprina Islandica, Tellina obliqua, and Tellina pretenuis. In the rest of 
the Red Crag, Solecurtus strigillatus. In the Fluvio-marine Crag, Scalaria clathratula, Scalaria foliacea 
Rissoa confinis, Hinnites Cortesyi, Astarte Burtinii, and Astarte Omalii. 
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