H6Ks were from the Toko Ku, the T/E bombers possibly from the Kanoya Ku (same 21st Air Flotilla)
https://www.naval-history.net/WW2USc...-USNbyDATE.htm
While returning from attempting to aid destroyer Peary (DD-226) (see 28 December), small seaplane tender Heron (AVP-2) is damaged but fights off, over a seven-hour span, a series of attacks by Japanese reconnaissance flying boats (Toko Kokutai) and land attack planes off Ambon, N.E.I.
https://www.history.navy.mil/researc...voli.html#no14
Q. Make a chart showing the disposition of forces of the Eleventh Air Fleet on 8 December 1941. Show number of aircraft by type as well as location?
A. As of 8 December 1941, the Eleventh Air Fleet under Vice Admiral TSUKAHARA, headquarters at TAKAO, was organized as indicated:
Vice Admiral TSUKAHARA
Headquarters-TAKAO
+++
21st Air Flotilla
Rear Admiral TADA
Headquarters-TAINAN
FIRST GROUP (TAKAO)
72 VF (Zeke)
24 VF (Reserve)
6-9 VS (Recon.)
KANOYA GROUP (TAIGHU)
54 VB (2) (Betty)
18 VB (2) (Reserve)
TOKO GROUP (PALAU)
12 VP (4) (Mavis)
4 VP (4) (Reserve)
+++
23rd Air Flotilla
Rear Admiral TAKENAKA
Headquarters-TAKAO
TAKAO GROUP (TAKAO)
54VB (2) (Betty)
18 VB (2) (Reserve)
THIRD GROUP (TAKAO)
72 VF (Zeke)
18 VF (Reserve)
6-9 VS (Recon.)
+++
22nd Air Flotilla
Rear Admiral MATSUNAGA
Headquarters-SAIGON
GENZAN GROUP (SAIGON)
27 VB (2) (Nell)
9 VB (2) (Reserve)
MIHORA GROUP (SAIGON)
27 VB (2) (Nell)
9 VB (2) (Reserve)