Aiiiitinidae. — Clavagelliilae. 173 



10. Fam. PHOLADOMYIDAE Gray. Pallhim clausum excepta rima brevi 

 pedali et altera inter lianc et siphones ; siphones perlongi ad apicem usque con- 

 juncti ; pes brevis appendice brevi furcata ; branchiae crassae appendicuhitae ; testa 

 aequivalvis, inaequihitera, inflata, tenuis , costis radiantibus , intus margaritacea ; 

 cardo edentulus aut utrinque dente parvo transverso. 



Pholadomya Sow. Tcsta tcmiis, tranalncida, ohlomia ant cordiformis , in- 

 ^fiaia , pustice iiians, i(»iho)iihi(S prominentihns prosogi/ris, tif/amcnto externo, hrevi ; 

 cardo vdentulxis, fovea lif/amrntati elonf/ata suhtriangida et lamina tenui prominida 

 in utraquc adra munifus; inq^rcssio 2^fdli(dis post profundc sinuata. 



1. Ph. Loveni .Teffr. Testa inaequilatera, cuneiformis, convexa, marga- 

 ritacea, tenuis, haud nitens, costulis lO^ — -12 radiantibus ad vestigia incrementi 

 subnodulosis sculpta tuberculisque minutis inter costas obducta, alba; margo dor- 

 salis utrinque declivis , posticus subtruncatus ; umbones prominuli, apice triangulo 

 intorto; cardo angulatus, himina tenui sinuosa reflexa. — Long. 10, alt. 8 mm. 



D i s t r i b. : Athmticum in abyssis. 



Habit. : Li 37" 30' lat. sept. , G^ al' long. occ. , 1456 org. prof. inter 

 Jijelli et Bona, in salo (Jeffreys); Marseille, in salo („Travailleur"), Peyssonel 

 (Marion); Palermo, 162 org., 300 m (Monterosato). 



11. Fam. CLAVACtELLIDAE Fischer. Pallium clausum, orificio post rimam 

 pedalem ; siphones conjuncti ; branchiae appendiculatae ; testa valvas duas et tu- 

 bum plus minusve longum praebens. 



Clavagella Lam. PaUium crassum, excepta rima parva pedali; siphones con- 

 Juncfi , (orona tcntacidorum muniti , orifcium analc simplex, hranchiale jimbriatum ; 

 pes digitiformis, parrus, tenuis. sulcatus, sed sinehi/sso; palpi suhtrionguli ; hranchinr 

 crassav, jwst conpnutac ct in slphonem hranchiahnn porrcctta', hvmina cxterna appni- 

 dicul(da ; c(dvac inac^iucdcs. parvac, sinisfra tuho affixa, dcxtra lihcra in tuho; vagina 

 tuhulosa tcstacea, antice- attcnuata ct aperta, postice in clavam suhcompressam, tuhidis 

 spinosis cchinatam terminata. 



Subgen. Tiria De Greg. „La camera dell" animale non e limitata dal tubo 

 ma e costituita di una semplice insaccatura nella roccia. Tale insaccatura e con- 

 tinua direttaniente col tubo." 



m 1. Cl. aperta Sow. (C7. sicula D. Ch., Tiria aperta De Greg.). Vagina 

 abbreviata, valde chivata, postice latissime aperta; apertura vaginis foliaceis 

 undulosis, infundibuliformibus instructa ; testa valvis triangulis hiantissimis, mar- 

 garitaceis ; valva libera crassa, transversim rugosa (Lamarck). Long. camerae 

 ad 45 mm, long. tubi 30, diam. 15 mm (IH — 21 centim. long. De GregorioV 



Habit. : Mahon (Hidalgo); Alger (Weinkauff), Lacalle, Oran, Bona {De>- 

 HAYEs); Sicilia (Delle Chia.je, negat Philippi), Palermo, Barra (De Gregorio), 

 Palermo , Siracusa (Aradas et Bexoit) ; Malta (Sowerby , Aradas et Benoit) ; 

 Adria : Ossero. Punte Bianche (Brusina), Zara (Sandri). 



2. Cl. melitensis Bhod. (C/. anguhda Phil., Cl. [Tiria] pJula De Greg.^i. 

 Vagina mediocris, compressa, hexagona, varicibus frequentibus, brevibus, patulis : 

 testa subrotundata , rugosa , intus nitens. — Long. tubi 1 7 mm , diani H mm 

 (Long. tubi 60 centim., costulis 16 longitudinalibus ornatus Dk Gregorio). 



Distrib.: Litora Atlantica Galliae. 



Habit. : Alger (Weixkauff), Rasligun, Bona (Deshayes) ; Sicilia: Palermo, 

 Siracusa (Aradas et Bexoit), Barra, Palermo (De Gregorio); Malta (Broderii', 

 Aradas et Ben»)it); mare Aegeum ? (Forbes). 



ni 3. Cl. balanorum Scaihhi. Camera ovata, intus calcarea, subpirifor- 



