■^68 Records of the S.A. Museum 



Cephalothorax obovatc, clothed with hoary hairs, reddish-brown with 

 bright yellow patch at summit, within which there are two dark-brown spots. 

 Pars cephalica flat, sloping gently forward, sides declivous. Pars thoracica 

 broad, sloping shar])ly to posterior extremity, sides declivcnis. Ej-es similar 

 tc> male. .Vnterior ])air of legs robust, yellow, suffused with fuscous; legs ii, 

 iii and \y yellnw \vith fuscous annulations. Relative lengths, 1, 4, 2, 3, 

 Falces reddish-lirowii, strong, arclied, apices di\ergent : inferior ridge of the 

 furrow of each falx fissidentate. and the superior bidentate ; fang long. 

 Maxillae and labium concolorous with foregoing; similar to male. Sternum 

 smoky-yellow, shining, attenuated in front, broadest between second and third 

 pairs of coxae ; posterior extremity obtuse. Abdomen slightly overhanging 

 base of cephalothorax, arched ; typical examples broadly ovate, others 

 elongate-o\ate ; superior surface and sides yellow, ornamented with median 

 and lateral dark-brown markings : inferior surface dull-yellow down the 

 middle, dark-brown laterally, pencilled with _\-ellow. I^pigynum broad, with 

 large elliptical discs, at the summit of each of which there is, in addition, a 

 small spherical one. 



This species appears to be somewhat common. It is variable in colour, 

 ornamentation and size. Some examples are broad and obese : others, even 

 when matured, narrow and attenuated. The cephalothoraces, male and 

 female, whilst varying in size and width, liave the same characteristic colour- 

 ing and ornamentation, though in some examples the yellow patch with dark 

 markings on the cephalic segment is \ery suggestive of a skull and cross- 

 bones. Again the abdomen is either ovate or oblong-ovate, and differs con- 

 siderably in tint and ornamentation. .Some examples are chalky-white on 

 the superior surface with a median scheme of delicate yellowish tracery, and 

 yellowish reticulations ; the sides are also chalky-white with yellowish reticu- 

 lations and pencillings, whilst the underside has a broad median longitudinal 

 band of yellowish-grey, and is chalky-white laterally with yellowish 

 reticulations. T}pe, I. 11.^44. 



OPISTHONCUS BITAENIATUS L. Koch. (L.H.I.) 



OPISTHONCUS SERRATO-FASCIATUS Keys. (L.H.I.) 



OPISTHONCUS DELECTABILIS sp. nov. (L.H.I.) 



( I'l. xxxi. t^gs. 120-122.) 



d Cephalothorax, 3-1 mm. long, 22 mm. broad; abdomen, 3 1 mm 



long, 1 '6 mm. broad. 



Cephalothorax broad, moderately lf)ng, ovate, sides well rounded. Pars 

 cephalica high, convex, sloping forward, shining, dark-brown with golden 



