SCINIDAE 259 



than the 5th, the latter shorter than the 4th and more slender, and the dactylus midway 

 in length between that of crassicornis and curvidactyla . 



The colour of fresh specimens has been noted on two occasions : no. 2 was " cephalo- 

 thoracic segments dull vermilion, last three abdominal segments pale crimson; eyes, 

 numerous chromatophores on antennae and a few on body bright vermilion"; and 

 no. 4 was "carapace transparent, stomach and liver visible as a pink reddish mass, 

 gonads pale yellow; last 2 abd. somites with a faint but broad red dorsal stripe ; antennae 

 spotted with red in middle, pale at either end; eyes scarlet; legs, pleopods and telson 

 transparent". Chevreux (1919, p. 10) records a similar rosy colour for this species; 

 likewise Stephensen (1923, p. 9). 



This species appears to inhabit a shallow zone in summer and a deeper zone in winter 

 (Stephensen, 1918, p. 24) and appears to breed chiefly in April to August in the Mediter- 

 ranean (ibid, p. 25) and in March to June and July in the Atlantic (ibid, p. 26). The 

 ' Discovery' took ovigerous ?? in the months of July and August. 



Distribution. Mediterranean; usually at depths over 500 m.; Atlantic from 58 N 

 to 35 S; Indian Ocean from 2° N to 32 S; southern Pacific Ocean. 0-4000 m. 



Scina curvidactyla, Chevr. 



Stephensen, 1918, p. 31. 



Wagler, 1926, p. 328, fig. 4; 1927, p. 92, fig. 2. 



Barnard, 1930, p. 401. 



Occurrence: 1. St. 13° 25' N, 18 22' W. 2 ?$ 13 and 19 mm. 



2. St. 71. South-west Atlantic. 1 $ 14 mm. (damaged). 



3. St. 76. South-west Atlantic. 1 ? 14 mm. 



4. St. 78. South Atlantic. 1 ? 17 mm. 



5. St. 85. South-east Atlantic. 1 $ 11 mm. 



6. St. 250. South Atlantic. 1 $ 15 mm. 



7. St. 256. South-east Atlantic. 1 <$ 14 mm., 2 ?$ 14 and 20 mm. 



8. St. 267. South-east Atlantic (117-0 m.). 3 $$ 12-13 mm., 1 ovig. ? 13 mm. 



9. ditto (450-550-0 m.). 1 $ 13 mm. 



10. St. 270. East mid- Atlantic. 1 ? 13 mm. 



11. ditto (200-0 m.). 1 c? 11 mm. 



12. St. 276. East mid-Atlantic. 1 ovig. ? 14 mm., 1 juv. 8 mm. 



13. St. 281. East mid-Atlantic. 1^12 mm., 1 ? 10 mm. 



Remarks. Far too few individuals of this species have been captured to allow of any 

 conclusions as to breeding times ; in the above list of occurrences one ovigerous $ was 

 taken in July and another in August. The 19 mm. ? is the largest specimen yet recorded. 

 None of the specimens show such a very short hook-like dactyl on peraeopod 4 as 

 Wagler figured. 



The colour of no. 4 is noted as: "Body and carapace [sic] rose-red; legs pale rose; 

 antennae, pleopods and tail-fan white". The internal mass of the peraeon still shows 

 salmon-pink, and the eyes are a rather deeper shade. 



Distribution. Mediterranean; Atlantic from 49 N to 28°S; northern Indian 



Ocean; southern Pacific Ocean. 0-3000 m. 



33-2 



