270 PERCY SLADEN TRUST EXPEDITION 



DESCRIPTION OF PLATES 

 Plate 44. 



(On specially toned paper.) 



Fig. 1. Dercitopsis minor n. sp. R.N. XLii. 6. Nat. size. 



Fig. 2. Yodornia perfecta n. sp. R.N. x. 1. Nat. size. 



Fig. 2 a. Yodomia pei-fecta n. sp. R.N. vi. Nat. size. 



Fig. 3. Myriastra cavernosa n. sp. R.N. Vii. 5 A. Nat. size. 



Fig.' 3 a. Myriastra cavernosa n. sp. R.N. vil. 5 B. Cut surface of divided specimen. Nat. size. 



Fig. 4. Aurora crihriporosa n. sp. R.N. cxix. 12. Seen from above. Nat. size. 



Fig. 5. Aurora rowi n. sp. R.N. cxxxi. Nat. size. 



Fig. 6. Ecionemia laviniensis Dendy. R.N. XI. 2. Nat. size. 



Fig. 7. Rhabdodragma conulosa (Kieschnick). R.N. Lxxviii. I A. Nat. size. 



Fig. 8. Donatia stella-grandis n. sp. R.N. cvi. 5. Nat. size. 



Plate 45. 



Fig. I. Dercitopsis minor n. sp. R.N. cxi. 7. 



1 a. Calthrops ; I h. triods ; 1 c. oxea ; all x 330. 

 Fig. 2. Pachastrella tenuilaminaris (Sollas). R.N. Lxxii. 2. 



2 a. Calthrops and short-shafted trisenes, x 60 ; 2 6. oxea, x 60 ; 2 c. style, x 60 ; 2d. strongyle, 

 X 60 ; 2 e. hair-like oxea, x 60 ; 2/. metasters, x 550 ; 2 g. microxeote, x 550. 



Fig. 3. Yodomia perfecta n. sp. 



3 a. R.N. X. I, calthrops, x60; 3 a'. R.N. ix. 1, calthrops, x60; 3 a". R.N. ix. 1, reduced 

 calthrops, x 60 ; 3 6. R.N. x. 1, small calthrops, x 60 ; 3 h'. R.N. ix. 1, small calthrops, x 60 ; 

 3 c. R.N. X. 1, mesotriaenes, x 60 ; 3 c. R.N. ix. 1, mesotrisenes, x 60 ; 3 c". R.N. vi., mesotrisenes, 

 X 60 ; 3d. R.N. x. 1, oxeote, x60; 3e. R.N. vl, amphiasters, x550; 3/. R.N. VL, smooth micro- 

 rhabds, x550; 3^. R.N. vi., spined microrhabds, x 550. 



Plate 46. 



Fig. 1. Myriastra cavernosa n. sp. R.N. vir. 5. 



1 a. Orthotrisenes, x 60 ; 16. oxea, x 60 ; 1 c. small oxeote, x 550 ; I d. chiasters, x 550. 

 Fig. 2. Aurora providential n. sp. R.N. Lxxxvi. 2. 



2 a. Orthotrisenes, x 60 ; 2 6. anatrisene, x 60 ; 2 b'. cladome of anatrisene, x 770 ; 2 6". cladome 

 end of reduced anatrisene, x 770 ; 2 c. oxea, x 60 ; 2 c. small oxeote, x 770 ; 2 d. large spheraster, 

 x770; 2e. small spherasters, x770; 2/. oxyasters, x 770. 



Fig. 3. Aurora crihriporosa n. sp. R.N. CXiX. 12. 



3a. Oxea, x60; 3 6. large spheraster, x770; 3c. young spheraster (?), x770; 3d minute 

 spheraster, x 770 ; 3 e. oxyaster, x 770. 

 Fig. 4. Aurora rowi n. sp. R.N. cxxxL 



4 a. Orthotrisenes, x 60 ; 4 6. oxeote, x 60 ; 4 c. sterrospheraster, x 770 ; 4 d — 4 h. stages in the 

 development of the sterrospheraster, x 770; 4j. small, irregular spherasters, x 770; 4^-. oxyasters, 

 X 770. 



Fig. 5. Ecionemia laviniensis Dendy. R.N. xi. 2. 



5 a. Dichotriaenes, x 60 ; 5 a', cladome of dichotrisene, x 60 ; 5 6. anatriaene, x 770 ; 5 c. oxea, 

 x60; 5d. chiasters, x770; 5e. oxyasters, x770; 5/. intermediate forms between oxyasters and 

 chiasters, x770; ^g. microstrongylote, x 770. 



Fig. 6. Asteropus simplex (Carter) R.N. lxxviii. 2. 



6 a. Oxea, x 60 ; 6 a', style, x 60 ; 6 6. oxyasters, x 770 ; 6 c. sanidasters, x 770. 

 Fig. 7. Bragmastra lactea (Carter) var. mauritiana nov. R.N. cxxvi. 4 E. 



7 a. Dichotrisenes, x 60 ; 7 6. oxea, x 60 ; 7 c. small oxyspherasters, x 770 ; 7 d. larger oxy- 

 spheraster, x 770 ; 7 e. trichodragmata, x 770. 



