52 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



The female usually ignores the male except for moving to get out 

 of his way and avoiding his courtship unless she is ready to mate. 



There may be little aggression even if both lizards are not adult, 

 provided they are quite different in size. 



(9) Hibiscus hedge — Mona [fig. 9] No. 11, 44 mm male and No. 8, 30 mm 

 female, held widely overlapping activity ranges and were both seen frequently 

 in sight of each other over a two month period. During this time only three 

 incidents were recorded which could be considered interactions and in each 

 of these No. 8 moved out of the way of No. 11 who happened to approach the 

 perch on which she was sitting. A similar relationship existed between No. 

 162 (a 40 mm female) and No. 161 (a 29 mm female) in the Barbican brush heap. 



Between the above-described extremes of tolerance and intolerance 

 are a number of cases in which a smaller lizard is tolerated by a 

 larger one in parts of the latter's activity range, usually those areas 

 the larger individual visited less frequently, but the latter attacked 

 in other areas particularly on its usual perches. 



(10) Barbican brush heap [fig. 6]. Nos. 145 and 162, 43 mm and 39 mm 

 females, demonstrate this. No. 145 held an activity range centered on a small 

 tree. No. 162 was a 39 mm female who spent most of her time in the small 

 section of the brush heap east of the tree, though a number of times I saw her 

 visit the tree itself. 



24 January — No. 162 jumps from east brush heap to tree where No. 145 

 was sitting. No. 145 immediately chased No. 162, who ran up tree. No. 145 

 did not follow. Twenty minutes later No. 162 runs back down tree and jumps 

 to east brush heap too quickly for No. 145 to do anything. 



25 January. No. 162 climbs tree; No. 145, who is in brush heap north of 

 tree, ignores her. No. 162 climbs to 10 feet (unusually high for a female) and 

 stays there for about 40 minutes. During this time No. 145 had moved from 

 north of the tree into the brush heap east of the tree. When No. 162 came back 

 down to the brush heap where No. 145 was, they bobbed at each other for about 

 15 minutes before No. 162 retreated down into the brush heap. 



29 January. No. 145 comes down tree and into east brush heap. No. 162 

 is in this brush heap about one foot from No. 145 but may not see her. No re- 

 action, and about H hour later No. 145 returns to tree and then to north brush 

 heap. 



31 January. No. 162 is hopping from east brush heap over towards tree. 

 No. 145, who was in brush heap north of tree, comes over across ground to be- 

 tween No. 162 and tree and bobs. No. 162 runs back to brush heap. 



Later No. 145 moves to east brush heap where No. 162 is; they ignore each 

 other. 



1 February. No. 162 moves from east brush heap to tree. No. 145 comes 

 from north brush heap to chase her and No. 162 runs up to 9 feet in the tree. 



5 February. Both Nos. 162 and 145 are seen in east brush heap. No. 162 

 bobs at No. 145 but No. 145 runs back to tree but not in response to No. 162. 



12 February. No. 145 chases No. 162 from tree. No. 162 runs across east 

 brush heap to rock beyond it. Until today No. 162 has spent most of her time 

 in the section of brush heap just east of the tree with very infrequent excursions 

 north and further east. Today No. 162 moved northeast and was involved in a 

 long and rather violent fight with a lizard well north of where she usually ranges. 



