LARID A 
(27) Stereorarius crepidatus (Banks) Qn + DNAX RW% 
K. 3 4s, (1 black phase), June 19, July 4& 14; 1 %, June 29; 
Bastegs Nie 22. 
ROP SMS OEE SE” SR ORBEA OS 
Re aes DEEP 
(28) Rissa tridactyla pollicaris Ridgw. の 中 9R リ へ 
Me 
EE か EE 
K. 1 wing, July 8; Y. 1 4imm., July 23, 1 9, dinky Bile On i Bp 
Aug. 8. 
(29) Chroicocephalus ridibundus (L.) > RWS 
K. 34s, July +2; 19, June 18: 
PR! DUE | SRESRR SARIN YROO ~ 
OR” MS Kh BUR) CONN O WOK SM? 
(30) Larus canus L. RW 
K. 1 @ad., June 16. 
(81) Larus marinus schistisagus Stejn. wk PY QRARYR 
C1 人 の ad. July 15; 1 9imm., June 18; -O. 12, Aug. 8. 
REY eee Res XS ake See ASO S 
et 
(3 )NRS IER cect: REPARRHER 

we wwe Y Saunders ORAHNREm Boy Vol. XXV 
(A) Mantle sooty black to dar kslate-colour......schistisagus. 
(B) Mantle blue-grey to dark pearl-grey...... 5355OG5O0DG5 vege. 
ASS? ED Re RR Oe 1G) 1 eGR IEEE 1 FRO OD 
YR -' BIVRLUK yw Or SH: L. argentatus vege 富 
SQ MPS ORBAH ew CRVUK IS WwPAHA®R L. marinus shistisagus 
34107 3° REY He 1 RORRO 0 LY HM 1 AVES 
Bah yy Soy BOAR -wEeschitssiagus Q Fv oe~ | Ain Sed 
EIQ evar uted echistisagus vito Rene 0° 
(32) Sterna longipennis Nordm. WN 1) 
Ke AS, dune 6; eo iuly.3 
TER aL PSR IHW, \h > ORVSE Mei 
Sify OVER HAW 65S pp P22 LOOP HERS ST nb f° 
(33) Sterna paradiseca Britnnich + XNA GRE) 
K. 1%, July 16; B. 12 & 2 (Sex?), Aug. 20. 
KANE APE pe XOR SOLEMN VH-Ros 
S6° PRM SIRES Sa in? ERR UR RV BK 
Hi” KURO RIT MSD ~38 
