BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 179 



Remopleurides n. g. PhilUpsia u. g. Oriffithides u. g. Dithyrocaris. 

 (Scoiiler) Portlock. 



The author gives a brief abstract of the various opinions which have 

 been published on fossil Crustacea in regard to their nature, analogies and 

 affinities. The following species are described and illustrated: 



Remopleurides colbii n. sp., B. later i-spinifer n. sp., B. dorso-spini/er 

 n. sp., B. longi-capitatus u. sp., B. longi-costatus n. sp. Ceraurus glohi- 

 ceps n. sp. Paradoxides ? bucephali (var.) 



Ampyx rostratus Sars., name changed to A. sarsii Portl.; A. nasutun 

 Dalm., name changed to A. dalmani Portl. Ampyx sarsii (var.), A. ros- 

 tratus Sars. (var.), ^4. austinii n. sp., A. mammillaius ? Sars., A.? baccatus 

 n. sp. Trinucleus caractaci Murch., T. elongatus n. sp., T. (Asaphus 

 His.) se^jcor nis His., T ^radiatus ? M.ViXch.., T. fimbriatus MnTch.., T.latus 

 Portl. Harpes doranni n. sp., H. flanaganni n. sp. Brontes hibernicus 

 n. sp. Arges (Goldfuss), A. plano-spinosus (Paradoxides bimucronatus 

 Murch.) 



Nuttainia hibernica n. s^., N.? obscur a n. s'p. Genus Asaphus. Caly- 

 mene. P hacops truncato-caudatus n.sj)., P. brongiiiartiin.s'p., P. dalmani 

 n. sp., P. murchisonii n. sp., P. jamesii n. sp.. P.? tuberculatus Murch. 

 Calymene blumenbachii Brong., C. piilchella Dalm., C.brevi-capitus n.?,T[). 

 Amphion, Zeihus, A. gelasionosus n. sp., A. frontilobus Pand., A. multi- 

 segmentatus n. ST^., A . pseudo-articulatus n. sp. Asaphus latifrons n.sp., 

 A. marginatus n. sp., A. dilatatus Dalm. Isotelus gigasDekay, also Isotelus 

 gigas (planus Dekay), /. ovatus n. sp., /. powisii Murch., /. rectifrons 

 n. sp., /. arcuatus n. sp., /. laviceps Dalm., /. intermedins n. sp., /. 

 sclerops? Green. Illcenus centrotus Dalm., I. crassicauda Wahl., /. quadrato- 

 caudatus n. sp. Ogygia ? rugosa n. sp. Proetus. PhilUpsia kellii n. sp., 

 P. ornata (Asaphus truncatulus Phill.), P. jonesii n. sp., P. jonesii var. 

 seminiferus Phill., P. maccoyi n. sp. Griffithides longiceps n. sp., G. glob- 

 iceps Phill., G. longispinus n. sp. 



Dithyrocaris (Scouler). In the Records of Science, 1835, Dr. Scouler 

 first noticed this crustacean, and, depending as a principal character on 

 the lateral appendages, he pointed oi;t its analogy to the genera Cyclops 

 and Apus. He also noted two new species in a paper read before the 

 British Association at Glasgow. Dr. Scouler having subsequently altered 

 his views of the affinities of the genus, he replaced the original name of 

 Argas by that of Dithyrocaris. The authority for this change is generally 

 quoted from Portlock. 



Dithyrocaris colei n, sp., D. orbicularis n. sp. Limulus trilobitoides 

 Bucklaud ? Cyjiris scoto-burdigalensis Hibbert, C. subrecta n. sp. 



Portlock figures the teeth of Dithyrocaris on plate xii, fig. 6. 



Postlethwaite (J.) and Goodchild (J. G.) On some 

 Trilobites from the Skiddaw slates. 



In Proc. Geologist Assoc, vol. 9, No. 7, 1886, p. 455, pis. 6-9. 



