24 



15. Ph. inucronatus Brngii. 

 Ph. capite antice rotundato, seniilunari, marginato, 

 angulis posticis in spinam extensis, protuberantia frontali 

 utrinque 4-incisa: oculis modicis, loborum pari anteriori 

 proximis; abdomine: costis bifidis mucroneque spiniformi. 

 Entomostracites caudatus Whgb. 28. II. 2. A«a- 

 phus mucronatus. Brngn. t. III. 9, Dalm. 42. 

 11. 3. a— b. 

 In Vestrogothiae schisto argillaceo supremo (Moes- 

 seberg, Alleberg)-, in Ostrogothia (Barenshult, Husbyfjol); 

 Scania (Rostanga), Norvegia. 



An Asaphus longicaudatus Murchins. 1. c. 

 XIV. 12 — 14 (Ludlowrock, Dudlej) species diversa? 



12. Ph. caudatus Briinnich. 



Ph. capite triangulari-semilunari, parum convexo, an- 

 gulis posticis longissime acuminatis, marginato: margiue 

 lato deflexo, totum caput ambiente, oculis modicis a 

 margine anteriore per latas declive, genas separatis; levi 

 impressione genarum transversali pro linea facialij abdo- 

 mine utrinque 8 — 9 costato , in caudam brevem mem- 

 branaceam attenuato. 



Asaphus caudatus Brngn. 22. t. II. 



In calce transitoria iun. Britanniae (Dudley, Coal- 

 brookdale etc), Gottlandiae. 



13. Ph. Hausmanni Brngn. 



Ph. capite antice rotundato, late marginato, hyposto- 

 mate lato-planiusculo, fronte antice dilatata, utrinque 4 — 

 impressionibus, mediis imperfectis, sulcum frontalem haud 

 attingentibus, oculis maximis iuxta frontis lobum anterio- 

 rera, marginem anticum fere attingentibus ; thorace?; ah- 



