1899.] PAEASITIC COPEPODA ON FISHKS. 453 



(48) Caligtjs teichiuri. ( S Kr., 5 B.-S.) 



(S . Caligus trichiuri Kr. Bidrag til Kundskab, 1863, p. 46, pi. iv. 

 fig. 2. 



Host : TricJiiurus Jiaumela. East Indies. 



2 (■?). Caligus longicaudus B.-S. Ann. & Mag. N. H. ser. 7, 

 vol. i. 1898, p. 8, pi. iv. fig. 1. 

 In Coll. Brit. Mus. 

 Hosts : TricJiiurus Jiaumela and Chirocentrus dorah. Bombay. 



Division 3. Abdomen with 3 joints. 



(49) Caligus angustatus. $ . 



Caligus angustatus Kj-. Bidrag til Kundskab, 1863, p. 84, pi. vii. 

 fig. 2. 



Sub-Gr. Sci^NOPHiLUS Van Beneden. ■ 



Cephalothorax proportionally very small, rounded. Grenital 

 segment elongated. Abdomen having a total length equal to the 

 remainder. Second maxillipeds very large, massive ; other limbs as 

 in Caligus. 



(1) SCI^NOPHILUS TENUIS. $ . 



Seicenophilus tenuis V. Ben. Bull. Acad. Roy. Belg. xix. 1852, 

 pt. 3, p. 464. 

 „ „ V. Ben. Eecherch. sur les Crust. Belg. 1861, 



p. 148, fig. xxi. 

 „ B.-S. Journ. M. B. Assn. Plymouth, 1896, 

 p. 156. 

 In Coll. Brit. Mus. 

 Host : gills of Scicena aquila. Europe. 



(2) SciiENOPHILUS BENEDENI. $ . 



Scicenophilus benedeni'B.S. Ann. &, Mag. N.H. ser. 7, vol. i. 1898, 

 p. 9, pi. iv. fig. 3. 



Host : gills of Scicena diacanthus. Bombay. 



Gr. 6. Lepeophtheirus Nordm. 



Carapace large, rounded, scutiform. Erontal border vi^ithout 

 lunulse. Fourth thoracic segment small, simple. Genital segment 

 without plates or lobes. Abdomen projecting, terminating in two 

 caudal plates. Thoracic limbs as in Caligus. 



Division 1. Abdomen consisting of a single joint. 



(1) LePEOPHTHEIEUS BEACHyURUS. 2 . 



Lepeophtheirus hrachyurus Heller, Eeise d. Novara, 1865, p. 185, 

 pi. xvi. fig. 4. 



Host : gills of Tetrodon ealamaria [T. stellatus]. Java. 

 Peoc. Zool, Soc— 1899, No. XXX. 30 



