1879.] 'LIGHTNING' AND <PORCVPINe' EXPEDITIONS. 57i 



4. Arca tetragona, Poli. 



X>Z U l rib M? : ^""" k '° MoS'"''"-. the Adriatic, Mediterranean 

 NS, s ?ro-4 a io C fr neS ' Az ° reS - ,CMle "8«' W (S3 



iff B ^; s "t,tr^<. Ess; Great Brifata *» d 



Synonyms rather numerous, but none worth recording A te 



■STa?S?22 w * and t0 which M(iller aQd Pe —* 



5. Arca ncxe, Linne. 

 ^ A.noa, L. S. N. p. 1140 (partly) - Po li, Test. utr. Sic. t. xxiv. 



e Porcupine' Exp. 1870: Med. St. Benzert Road 

 Distribution. Morbihan and Charente Infpripnr* 0*A\ a a. i- 

 out the Mediterranean to Egypt, AcSad ^, Red Sea Tn^Tt 

 Carolina to West Indies; 0-100 fms lenentte, N. 



JW. Miocene and Pliocene. Vienna Basin, S.France AMers 

 Italy, Morea, Rhodes, Cyprus, and the Azores. ' g *' 



Marketable and eaten at Spezzia, Venice, Naples, and Malta. 

 6. Arca antiquata, Linne. 



t. «vT" iZl L - s - N - p - 1I41 ( p aitl >') : Poli T ^ «*. sic, 



™ ^ rC T Pin6 ' ^ P - l? 7 ? : AtL St - Setubal »■• 22, C. Sagres 26 

 il'ush^Srr^ll- "' * * ^^ B ^ *"ei 



Gittr "to the M S°fa ad o ; M d ^fr 4 the Mediterranean from 

 moiaitar to the Sea of Marmora, Adriatic, Red Sea to Madeira 

 Canaries New England from Cape Cod southwards ; 20-100 fm"' 



o w \ IT''" "^ Pli ° Cene - N - W ' Ge "W, Vienna Sarin 

 S.W and S. France, Barcelona, Malaga, Algiers, I&y, and Mor a 



This is assuredly the A. antiquata of Poli. Linn J founded L 

 species on the wretched and unsatisfactory figures of Bonamu -in 



f we q k at l T2 ** , Jt is , al r n " art the 3TS5JE 



*n f l ;!Tff \ ^' rfitoM was desc »bed from an Eocene specie, 



savs hft ' Majer pr °' J0Sed P° Ui for our shell ; but BruCone 

 says that two species were included under that name JudgKom 



