10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 73 



Gissler's specimen on which the original description of the species 

 was based was a parasite of Panopeus hej'hstu, collected on the coast 

 of Florida (Tampa). 



H L4 



e f S h ^ 



FlO. 6. LOXOTHYLACUS PANOPAEI (GlSSLEK). a, PART OF THE EXTEKNAL CUTICLE OF A 



SPECIMEN FROM EURYPANOPBUS DEPRKSSUS (SMITH), X 440. h, PART OF THE EXTER- 

 NAL CUTICLE OF A SPECIMEiV FROM PANOPEUS HBRBSTII MILNE-EDWARDS, X 440. 

 AND d, APPENDAGES FROM TWO DIFFERENT PLACES ON THE EXTERNAL CUTICLE OF A 

 SPECIMEN FROM PANOPEUS HERBSTII MILXE-EDWARDS, X 440. e, CUTICULAE AP- 

 PENDAGES OF ANOTHER SPECIMEN FROM PANOPEUS HERBSTII MILNE-EDWARDS, X 440. 

 t, CUTICULAR APPBNDAGES OF A SPECIMEN FROM PANOPEUS OCC'IDENTALIS (SAUS- 

 SURE), X 440. g, RETINACULUM OF A SPECIMEN FROM EUUYPANOPEUS DBPRESSUS 



(Smith), X 440. h, and i, retinacula of two different specimens from Pano- 



PBCS HERBSTII MILNB-EDWARDS, X 440 



LITERATURE 



H. BoscHMA, 1925. Rhizocephala of Curagao. Bijdragen tot de Dierkunde, 



Afl. 24. 

 , 1927. Tiber europaische Formeu der Gattuug Sacculina. Zool. Jahrb., 



Abt. f. Syst., vol. 54. 

 A. GiABD, 1887. La Castration Parasitaire et .son Influence sur les Caract^res 



ext^rieurs du sexe male chez les Crustac6s Decapodes. Bull. Sclent, du 



Nord de la France et de la Belgique, ser. 2, vol. 18. 

 J 1888. Le Laboratolre de Wimereux en 1888 (Recherehes fauniques). 



Bull. Sclent, du Nord de la France et de la Belgique, ser. 3, vol. 19. 

 C F. GissLEB, 1884. The Crab Parasite, Sacoulina. American Naturalist. 



vol. 18. 

 J. GufiRiN-GANivET, 1911. Contribution a I'lfetude systematique et biologique des 



Rhizoc4phales. Trav. Sci. du Lab. de Zool. et de Physiol. Maritimes de 



Concarneau, vol. 3. 

 P. N. Van Kampen and H. Boschma, 1925. Die Rhizocephalen der Siboga- 



Expedition. Siboga-Expeditie, Monographic, 31bis. 

 R. Kossmann, 1872. Beitrage zur Anatomie der schmarotzenden Ranken- 



fiissler. Verb. med. phys. Ges. Wiirzburg, new series, vol. 3 (also in: Arb. 



zool.-zoot. Inst. Wiirzburg, vol. 1, 1874). 

 G. Smith, 1906. Rhizocephala. Fauna nnd Flora des Golfes von Neapel, 29. 



Monographie. 



o 



