— 27 — 



Areaj impressione obJlqua Jeviter distinctae. Granula vesiculosa , 

 eJevata, in medio minora, ovalia, passim connexa, per series 

 moniliformes densissimas disposita , medio Jongitudinales, hic et 

 iJlic leviter flexas, subbifidas, utrinque divergenles, in areis la- 

 teralibus irregulares, secundum strias incrementi rudes recurvas. 

 Laminae articulares spatio tertiam partem latitudinis fere aequante 

 separatae, in angulum rotundatum productae, integrae, ad mar- 

 ginem Jimbalem nullae; in v. prima decJivis, striata, integra, 

 in ultima postice nulJa. Limbus crassus tumidus, setis brevi- 

 bus, graciJibus, aequalibus dense hispidus. — Inter Europaeos gigas. 

 — NageJfar nomen erat navis Odini unguibus hominum mortu- 

 orum contextae, sec. myth. scandinavicam. Finm. 



207. C. Hanleyi Bean, Tuorpe. — T. obJonga, alba 1. fuscescens, 

 valvuJis 5 — 6 Jatioribus, prima ultima majore, costato-granulosis, 

 limbo hispido subfasciculato; || mm. — Valv. 8,1,2,7,3,4,5,6, 

 crassiusculae, convexae, margine postico subrecto, brevimucronato, 

 antico arcudto medio emarginato, utrinque rotundato, long. ad 

 lat. in v. quinta = 1 : 2,7, in secunda antice subangulata = 

 1:2,2; prima semiovalis, ultima illa angustior. Areae parum 

 distinctae. Granula in media v. minora, versus latera magna, 

 inflata, papiJlosa, globulosa, fere pedunculata, passim decidua, 

 praesertim in margine postico, quem tuberculosum reddunt, per 

 aream mediam in series digesta longitudinales, medio parallelas, 

 utrinque radiantes, fere costales, sulcis discretas, in areis late- 

 ralibus secundum strias incrementi fere arcuatim ductas; in v. 

 prima granula inaequalia concentrice disposita, ut in ultimae 

 parte postica. Laminae quales in priore./:sed paullum breviores 

 et magis rotundatae, vix angulatae. Limbus hispidus, ad angu- 

 lum posticum cujusque valvulae setas emittens longiusculas, sub- 

 fasciculatas. Boh. — Finm. 



***) Limbus squamulis imbricatus; areae distinctae, granulorum serie- 

 bus in media longitudinalibus, in JateraJi utrinque transversis, • radi- 

 atis; laminae late disjunctae, integrae, in margine limbali nullae. 



208. C. albus L., Gunn., Muell. , 0. Fabr. , Spglr. , Mont., Gould. 

 = C. aselloides Lowe. — T. oblonga, carinala, alba I. fusce- 

 scens, squamulis limbi aequalibus politis; ^mm, Boh. — Finm. 



209. C. cinereus L., Muell., Mont., Lamk., (non 0. Fabr.) = C. 

 asellus Spglr., Chemn., Lowe, Desh. = C. minimus Ciiemn (non 

 Spglr.) — T. ovata, subdepressa, cinerea fusco lineata, squa- 

 mulis limbi inaequalibus, rudibus; fa mm. Kull. — Bergen. 



210. C. alveolus Sars ms. — T. oblonga, convexa, alba, squamu- 

 lis Iimbi inaequalibus, angustis; * T a mm. — T. satis convexa, 

 vix culminata; valv. 8,1,7,2,3,6,4,5, arcuatae, longae, long. ad 

 lat. in quinta = 1:3. postice rectae, vix mucronatae, margine 

 antico leviter arcuato, medio emarginato, limbali rotundato. V. 

 secunda antice subangulata , prima semicircularis, ultima subel- 

 liptica. Laminae spatio separatae ^ tot. lat. fere superante, ro- 

 tundatae Series granulorum in areis lateralibus transversae, den- 



