The names in heavy type are new. The references are to the 

 Plates of the Monograph — the Roman numerals indicating the plate 

 numher ; the Arahic, the figures in the plate. T indicates the type 

 of genus. 



HiLDOCERATID.E. 



Brasilia bradfordensis — Lioc. bradfordense, iv. 5, 6. 



Br. efFricata — Lioc. ambiguum, vii. 3, 4. 



Br. pinguis — Lioc. concavum, var. pingue, xii. 1 — 3. 



Br. pulchra — Lioc. concavum, x. 3, 4. 



Br. sublineata — Lioc. concavum, viii. 5, 6. 



Braunsia leiiis— Lioc. ambiguum, vii. 5, 6. 



Braunsina? angulifera — Lud. rudis, xv. 16, 17, 



Braunsina futilis — Lioc. apertum, xv. 7, 8. 



Canavaria folleata — Gram, fluitans, xxx. i, 2. 



C. venustula — Gram, subserrodens, xxxi. 5, 6, 10^12. 

 Cotteswoldia costulata (Ziet.) — G. costulatum, xxxiii. 3, 4. 

 Cott. crinita — Gram, mactra, xxxi. 3, 4. 



Cott. distans — G. distans, xxxiii. i, 2. 

 Cott. limatula — G. mactra, xxx. 5, 7. 

 Cott. misera — G. aalense, xxxi. 15, 16. 

 Cott. subcandida — G. aalense, xxxii. 7, 8. 

 Cott. superba — G. aalense xxxii. i, 2. 

 Darellia laevis — Hyperl. discites, xviii. 4, 5. 



D. polita — Hyperl. Walkeri, xvi. 3 — 6. 



D. semicostata — Lioc. dicipiens var. intermedium, xii. 10, 11. 

 Deltoceras subsectum — Hyperl. discoideum, xix.3, 4. 

 Deltoidoceras subdiscoideum — H. subdiscoideum, xix. 5, 6 ; 



XX. I, 2. 

 Depaoceras fallax — Lioc. fallax, xiv. 10, 11, T: Lud. Lucyi, 



xxi. 7— g. 

 Dep. formosum — Lioc. concavum var. formosum, x. i, 2. 

 Dissoroceras tabulatum — Lud. Lucyi, xxi. 5, 6. 

 Grammoceras audax — G. toarcense, xxviii. 4 — 6. 

 G. penestriatulum — G. striatulum, xxviii. 16, 17. 

 Graphoceras decorum — Lioc. concavum, viii. 3, 4. 



