ORDOVICIAN AND SILURIAN BRACHIOPODA OF THE GIRVAN DISTRICT. 957 



(5) Lingula ? crumenoides, sp. nov. 

 (1) ,, Leivisi (Sow.). 

 (1) ,, mediostriata, sp. nov. 

 (1) „ ovata, M'Coy ? [Lingula ovata (pars)]. 

 ( 1 ), (3) ,, pseudoquadrafa, sp. nov. 

 (1), (2) „ quadrata (Eichw.) [Lingula quadrata]. 

 (1) „ solvens, sp. nov. 

 (1) „ Symondsi, Salt. [Linguli Symondsi]. 

 (1) Lingulasma ? ardmillanevse, sp. nov. 

 (1) ,, ? canadense (Billings) [Lingula canadensis]. 



(1) ,, 1 penultimum, sp. nov. 



0)> (2 ?) ,, ? pulcherrimum, sp. nov. 



(1) „ ? quxstor, sp. nov. [Lingula granulata (pars)]. 



(1). (2) „ 1 tenax, sp. nov. 



(1), (3) Siphonotreta micula, M'Coy [Siphonotreta micula (pars)]. 

 (1) ,, ? thraivensis, sp. nov. 



(1)> (2), (3) ScMzambon scoticus (Da v.) [Siphonotreta scotica (pars)]. 

 (1), (3) „ „ var. 



0)> (2), ( 3 )> (4), (7) Acrothele medioradiata, sp. nov. 



(1) „ ?sp. (a) [Acrotreta Nicholsoni (pars)]. 

 (1) „ (Redlichella 1) sp. (b) [Siphonotreta micula (pars)]. 

 (1), (3) Acrotreta ?sp. (a). 

 (5) ., ?sp. (6). 



(1) ,, (H) costata, Dav. [Acrotreta costata]. 

 (1), (7) Gonotreta conoidea, sp. nov. [Acrotreta Nicholsoni (pars)]. 

 (1) Trematis craiyensis, sp. nov. 

 (1) ,, yaelliflua, sp. nov. 

 (1) ,, siluriana, Dav. 



(1) Schizomania asteroidea, sp. nov. [Discina crassa]. 

 0)> (?) Orbiculoidea Armstrongi, sp. nov. [Discina perrugata (pars)]. 

 (1) » shaUochensis, sp. nov. [Discina perrugata (pars)]. 



(1)> (2), (3), (7) „ stincharensis, sp. nov. [Discina perrugata (pars)]. 



(1) ,, (Schizotreta) Forbesi (Sow.). 



(1) Phi/hedra drummuckensis, sp. nov. 

 U )> (2) „ mullochensis, sp. nov. [Crania siluriana (pars)]. 



(1) „ ? penkillensis, sp. nov. 

 (1) » Playfairi, sp. nov. 



(1)> (2)> (3) ,, siluriana (Dav.) [Crania siluriana (pars)]. 



(7) „ sp. 



(1) Pholidops antiqua (Schloth.) ? 

 (1)> (2) „ implieata (Sow.) [Pholidops implicata]. 



(1) Pseudocrania divaricata, M'Coy. 

 • (1) „ multifilosa, sp. nov. 



(1) >, aff. depressa (Eichw.). 



(1)> (2), (3), (5) Orthis calligrumma, Dahn., var. nov. craigensis [Orthis calligramrna (pars)]. 

 (1)> (2), (5), (6) ,, }) var. nov. subplicata [Orthis calligramrna (pars)]. 



(1). (7) „ „ ?var. 



(1)> (2), (3), (5) „ Playfairi, sp. nov. [Orthis calligramrna (pars)]. 

 (1)> (2) ,, (Plectorthis) ardmillanensis, sp. nov. 



0) >> ( „ ) duftonensis, Reed, var. [Orthis calligramrna, var. plicata 

 (pars)]. 

 ( 1 ) > ( 3 )> (4) „ ( „ ) rustica, Sow. [Orthis rustica (pars)]. 



