1870.| REV. 0. P. CAMBRIDGE ON SINAITIC SPIDERS. 819 
species apparently new to science, and of which descriptions and 
figures are added below. 
1. Segestria perfida, Walck. Ins. Apt. i. 267.— Wady Gher- 
andel, pen. Sin. 
2. Drassus listeri, Savign. Egypte, Arachn. p. 155, pl. 5. fig. 4.— 
Convent gardens and back of Mount Sinai. 
3. Pholeus rivulatus, Savign. Egypte, Arachn. pl. 3. fig. 12.— 
Convent gardens and back of Mount Sinai. 
4. Latrodectus hamatus, Koch, Die Arachn. vi. tab. cevi. figs. 
507, 508.—Convent gardens and back of Mount Sinai. 
5. Argiope aurelia, Savign. Egypte, Arachn. pl. 2. fig. 5.— 
Inland from Massowah. 
6. Argiope lordii, Cambr., n. sp.—Inland from Massowah. 
7. Argiope sericea, Savign. Egypte, Arachn. pl. 2. fig. 6.— 
Convent gardens and back of Mount Sinai. 
8. Epeira opuntie, Dufour; Walck. Ins. Apt. ii. p. 140.— 
Inland from Massowah. 
9. Epeira solers, var.’, Walck. Ins. Apt. ii. p. 41.—Jebel Musa, 
pen. Sin. 
I am not satisfied about the specific identity of this Spider ; it is 
similar to several examples captured by myself in Egypt and in Pa- 
lestine ; and when the adult male is discovered, possibly it may prove 
to be undescribed; at present, only having seen the female (in 
which no structural difference is observable, though it differs some- 
what in colours and integument), I include it as a variety of Z. solers. 
10. Gasteracantha lepida, Cambr. n. sp.— Mangrove-swamps ; 
African border of Red Sea. 
ll. Sparassus linnei, Savign. Egypte, Arachn. p. 160, pl. 6. fig. 2. 
—Hot springs, Pharaoh’s Baths, Cairo. 
Mr. Lord assures me that he captured this species (of which 
several examples were contained in his collection) in the water of the 
above baths, into which they voluntarily plunged. Independently of 
the high temperature (157° Fahr.) of these waters making this a 
remarkable fact, it is the first species of this family of Araneidea 
(Thomisides) in regard to which, as far as my knowledge goes, 
aquatic habits have been observed. 
12. Sphasus alexandrinus, Savign. Egypte, Arachn. p. 142, pl. 4. 
fig. 1.—Jebel Musa, pen. Sin. 
13. Pasithea viridis, Blackw. Ann. & Mag. Nat. Hist. 3rd ser. 
vol. i. no. 6, p. 427.—Jebel Musa, pen. Sin. 
14. Lycosa pilipes, Lucas, Explor. en Algérie, Arachnides, p. 109, 
pl. 2. fig. 8—Wady Gherandel, pen. Sin., Nasb, Genneh, Jebel 
Musa, and at Pharaoh’s Baths, Cairo. 
15. Lycosa prelongipes, Cambr., n. sp.—Wady Nasb, Genneh, 
Jebel Musa, pen. Sin. 
