160 STALK-EYED CRUSTACEA. 



ACANTHEPHYRA A. M. Edw. 



? Epht/ra Roux, Mem. siir la Classil". dcs Crustaces de la Tribii dcs Salicoques, p. 24, 1831 (type, Alpheus 

 pdagictis Itisso). 



? Miersia (uom. uov. vice Epiii/ra pra;oc.) Kingsley, Proc. Acad. Nat. Sci. Pliila., 1879, p. 41G (same 

 type). 



Miersia S.MiTn, Bull. Mus. Comp. Zool., X. 66, 1882. 



Acanihephyra A. M. Edwards, Ann. Sci. Nat., Zool., C''"^ Ser., Vol. XL, Art. 4, p. 12, 1881 (type, Acanihe- 

 phyra armata A. M. Edw.) ; id., Recueil de Figures de Crustaces nouv. ou peu connus, 1'" Livr., Plate 

 XXXIII., 1883 ; Smith, Ann. Rep. U. S. Fish Comm. for 1882, p. 37'2, 1884 ; id., Proc. U. S. Nat. Mus., 

 VII. 502, 1883 ; id., Ann. Rep. U. S. Fish Comm. for 1885, p. 6G7, 1886 ; Wood-Mason, Ann. Mag. 

 Nat. Hist., Gth Scr., VII. 195, 1891, IX. 358, 1892 ; Stebbing, Hist. Crust., p. 243, 1893 ; Faxon, 

 Bull. Mus. Comp. Zool., XXIV. 206, 1893 ; Ortmann, Decap. u. Scliizop. der Planktoii-Exped., p. 43, 

 1893. 



Acanihephyra + Sy-itellaspis Bate, Rep. Challenger Macrura, pp. 730, 757, 1888 (type of Systellaspis, 

 (S. lunceocaudata Bate). 



So little is known concerning the structure and affinities of Alpheus jwlagi- 

 ciis Risso,* the type species of the genus Miersia Kingsl. (= Up/i^ra Roux, 

 nom. 2]>'(eoc.), that it seems best to ignore Miersia [Ephi/ra) as based upon a 

 species at present indeterminable, and to suppress family and subfamily 

 names derived therefrom. The lower Ati/idw, genera characterized by palp- 

 less mandibles and by the presence of exopods on all the thoracic legs.f 

 may receive the subfamily name Parafyince, from Paratija Miers | (type, 

 Ephyra? compressa De Haan). § The genus Ati/ephi/ra,\\ with Caridina-like 

 chel£e and with exopods on only the first two pairs of legs, forms a transition 

 from the Parat/^irm to the Atf/ina'. Ephjra hevcJcelii v. Mart.** belongs to the 

 family Uoplophoridoe, and probably to Acunihephijra, subgen. St/siellaspis Bate. 



* Alphens pelagicus Risso, Hist. Nat. des Crustaces des Environs de Nice, p. 91, Plate II. Fig. 7, 1S16. 

 Pandalus pelagieus Risso, Hist. Nat. de I'Europe Merid., V. 79, Plate II. Fig. 5, 1826. 



f Such forms have been called Miersiidee by Pocock (Ann. Mag. Nat. Hist., 6th Ser., III. 17, 1889), 

 Ephyrina by Ortmann (Zoolog. Jalirb., Abth. f. Syst., V. 456, 1890). 



X Ann. Mag. Nat. Hist., 5tli Ser., IX. 194, 1882. 



§ Siebold's Fauna Japouica, Crustacea, p. 186, Plate XLVI. Fig. 7, Plate O, 1849. 



II Atyaephyra Brito Capcllo, Djscrip^ao dc algunas Especies Novas ou |)ouco conhecidas de Crusfaccos, 

 etc., p. 5, Plate I. Fig. 1-1", 1866 ; in Mem. Acad. Sci. Lisboa, CI. de Soi. Math., Nova Serie, T. IV. 

 Part I., type, Atyaephyra rosiana Brito Capello. Ortmann (Zoolog. Jahrb., Abth. f. Syst., V. 464, 1890) 

 has recently established the genus Ilemicaridina for the reception of Illppolytc desmareatii Millet {Cari- 

 dina detmaresdi Joly). Since this species is strictly congeneric with Atycphyra rosiana, Ilemicaridina be- 

 comes a synonyme of Atyephyra. 



** Arch. f. Naturgesch., XXXIV. L 52, Plate I. Fig. 7», 7^, 1868. 



