464 MR. p. W. BASSETT-SMITH ON [-^^pr- 18) 



G. 19. ECHTHEOGALEUS Stp. & Lutk. 



Carapace as ia Dinematura. Dorsal plates of last thoracic riug 

 proportionally larger ; no median processes posteriorly to genital 

 segment; abdomen and caudal plates not projecting. Thoracic 

 limbs as in the preceding genus, except that the inner branch of 

 the second and third pairs has only two joints instead of three. 



(1) ECHTHEOSALEUS COLEOPTEATUS. d $ . 



Dinemoura coleoptratus Guerin, Icon. d. Reg. animal, iii. 1817, 

 pi. XXXV. fig. 6. 



Pandarus alatus Johnst. Loud. Mag. Nat. Hist. viii. 1836, p. 202. 



Dinemoura alata M.-E. Hist. Nat. Crust, iii. 1840, p. 464. 



„ „ Baird, British Entom. 1850, p. 285, pi. xxxiii. 



fig. 8. 



Nogagus ? 6 . 



Echthroqnleus coleoptratus Stp. & Liitk. Bidrag til Kundskab, 

 1861, p. 380, pi. viii. fig. 15. 



In Coll. Brit. Mus. 



Host : Lamna cornubica. 



(2) BOHTHEOGALEUS NEO-ZBALANICTTS. $ . 



Dinematura neozealanica Thomson, Trans. N. Z. Inst. 1839, 

 vol. xxii. p. 359, pi. xxv. fig. 2. 

 Host : " Shark." New Zealand. 



(3) ECHTHEOGALETJS AFFINIS. $ (S . 



Dinemoura afftnis M.-E. Hist. Nat. Crust, iii. 1840, p. 465, 

 pi. xxxviii. fig. 15. 

 „ „ Stp. & Liitk. Bidrag til Kundskab, 1861, 



p. 382. 

 Dinematura braccata Dana, U.S. Expl. Exp., Crust, ii. 1848, 

 p. 1370, pi. 95. fig. 4. 



Nogagus braccata ^ , Heller, Eeise d. Novara, 1865, p. 197, 

 pi. XX, fig. 3. 



In Coll. Brit. Mus. 



Host: Leptocarcharias sp. New Zealand and Tongatabu. 



(4) EOHTHEOGALEUS INDISTINCTUS. J . 



Dinematura indistincta Kr. Bidrag til Kundskab, 1863, p. 183. 

 Host : — ? Valparaiso. 



Division ii. Pandarina;. — All the limbs provided with hook-like 

 appendages, or with the edges quite smooth. 



Or. 20. Ceceops Leach. 



Carapace oval, robust, deeply notched in front. Anterior antennae 

 small, hidden. Last thoracic segment with a pair of short dorsal 

 plates. Genital segment as loog as cephalothorax. Abdomen small. 

 Caudal plates minute. All the thoracic limbs biramose, increasing 



