OOLOGY. 



17 



Hai^ob^na c^rulea, (Gm.) Bp. (p. 34.) 



Nests in deep tortuous barrows in hill-sides near the sea. Egg is 

 single, ovoidal, and dull white, without color-markings. In the speci- 

 mens measured, there is, however, as shown by the figures, the usual 

 range of variation in contour. They remind one, in size and shape, of 

 the eggs of a bantam hen. Shell is thin, homogeneous, and compact in 

 structure, presenting under the lens a finely granular external surface. 

 First found October 23. 



The measurements are as follows : — 



Smithson. No. 



Orig. No. 



Measurements. 



17161 



49a 



2.00 Xl.50 



17162 



49& 



2. 08 X 1. 44 



17163 



49c 



2. 09 X 1. 57 



17164 



49d 



2. 00 X 1. 45 



17165 



49e 



1. 90 X 1. 50 



17166 



49/ 



1. 96 X 1. 47 



17167 



49<7 



1. 92 X 1. 48 



17168 



49A 



2. 10 X 1. 46 



17169 



49i 



1. 95 X 1. 48 



17170 



49/ 



2. 07 X 1. 54 



17171 



— 



2.02X1.45 



17171a 



41 



1. 91 X 1. 52 



17172 



63 



2. 08 X 1. 43 



17173 



71 



1. 90 X 1. 47 



The newly-hatched young have bill and toes slaty blue, with appar- 

 ently pale-yellowish webs and brownish-black claws. The horny speck 

 upon the bill is whitish, and situated high above the tip of the bill. The 

 region about the base of the bill is largely denuded. They begin to 

 hatch about November 12. 



Pelecanoides uei:xatrix, (Gm.) Lacejjede, (p. 36.) 



Lays one egg in a burrow in the hill-side, generally selecting the same 

 locality as Halocebna ccerulea. Burrow is straight, slanting slightly 

 downward, and less deep than that of Halobo3na. Kgg is a regular ovoid, 

 tending in some specimens to ellipsoidal. First found December 10. 

 Shell is white, thin, brittle, compact, and homogeneous in structure. No 

 color-markings. 

 2 K 



