■s; 



nuAcmopoDA. 61 



11. WaLDIIEIMIA Mt'LTICOSTATA. U.M. 



Shell suborbinilar, ornanionted witli fl-ll corrcsjionding ribs; 

 ribs niibiitiiifr. proniiiu'iit, rouiidi'd, i)i{)jcctiiii^ lii-voinl the mar- 

 gin, tivi' or six <.'.\ti'iidiii<^ to the iiint)o, the rest iiitcrcaliited ; 

 valves convex, marjrins straight ; beak short, scarcely curved, 

 uncated bv a inodiTate-siy.ed foramen. Lon. (!, hit. 6, alt. 4 

 lines. 



Terebratula multieostata, Klipst. 1844, Beitr. p. 21fi. pi. 15. f. 5. 



D'Orh. Prod. i. p. 204. 

 Fossil. Trias. Tyrol. 



12. "NVaLDHEIMIA ? aUINQUECOSTATA. B.M. 



Shell trigonal, ornamented witli five radiating, corresponding 

 ribs ; ribs very prominent, rounded, ])rojeeting beyond the mar- 

 gin ; iutersjjaees narrow, flat ; beak small, prominent, laterally 

 com))ressed. Lon. 3, lat. 22 lines {Miinster). 



Terebratula quinquccostata, Miinst. 1841, Beitr. iv. j). 59. jil. 6. 



f. G. 

 Spirigera quinquccostata et crista-galli, D'Orh. Prod. i. p. 204. 

 Terebratula crista-galli. Klipstein,\i<AA, Beitr. p. 217- pi. 15. f. \K 



(Dorsal valve only : lon. '6\, lat. 4j lines.) 

 Fossil. Trias. St. Cassian. 



13. Waldheimia? flexuosa. B.M. 



Shell obovate, depressed, smooth at the umbones, bordered 

 with numerous, unequal, corresj)onding ribs, those at the sides 

 diverging and projeetmg beyond the margin ; front obtuse or 

 slightlv truncated ; beak prominent, laterally compressed; area 

 small ; foramen round, apical. Lon. 5^, lat. 4^, alt. '6 lines. 



Terebratula flexuosa, Miinst. 1841, Beitr. iv. p. 59. pi. 6. f. 8. 



Ktipsteiii, t. 15. f. 4. 

 Rhynchonella flexuosa, D'Orb. Prod. i. p. 203. 

 Fossil. Trias. St. Cassian, Tyrol. 



14. Waldheimia celtica. B.M. 



Shell oblong, elongated, smooth, slightly truncated in front ; 

 margins even ; dorsal valve inflated near the umbo, depressed in 

 front ; ventral valve convex ; beak slightly produced, not much 

 recuned, keeled ; foramen moderate ; deltidium obtusely trian- 

 gular, double ; loop elongated, reflected. Lon. 18, lat. 9, alt. 8 

 lines. 



