Here is the complete page of the first evidence:


▲ 重訂直音篇（練川明德書院明萬曆34年刊本）卷6 folio 85b

Here ⿱浞魚 is in the last section of the 魚部336, as mentioned in the preface:「今於諸篇韻等搜集四萬三千餘字成篇……元篇有音無註者三千餘字今亦收之」.

Here are all 22 characters in this section:

鮕鮔𩵯𩶖𩼂𩸐𩸃𩸹䲏𱇁⿺免𩺰𩶸⿰魚升𩷂𩷵𩹅⿱浞魚𩸅䱯⿰魚⿶𫼃⿱亠丷鯚𩽡

Among them, 18 share the exact shape with 成化丁亥重刊改併五音類聚四聲篇:

鮕鮔𩵯𩶖 5畫 / 𩷂𩸐 6畫 / 𩷵𩸃 7畫 / 𩸹𩹅𩸅䱯鯚 8畫 / 䲏𩼂 12畫 / 𩽡 17畫 / ⿰魚⿶𫼃⿱亠丷⿺免𩺰 after 併了部頭.

3 are normalized: ⿰魚升 ~ ⿰魚⿸⿶廾丶丶 5畫 / 𩶸 from 𩸟 8畫 / 𱇁 from ⿰魚⿱旧里 14畫

The only exception is ⿱浞魚.

This implies that 直音篇 is heavily influenced by 四聲篇海. However, 四聲篇海 includes a character 𩸧, very similar to ⿱浞魚:


▲ 成化丁亥重刊改併五音類聚四聲篇（明成化刊本）卷3 folio 15a, 𩸧，音泥. quotes 類篇.

In this case, even characters around 𩸧 (and their annotations) in 四聲篇 are preserved in 直音篇 in their original ordering：「𩹅，音英(字)；𩸧，音泥；𩸅，音甫.」

And 𩸧 is not included in 直音篇 elsewhere if I read correctly. Therefore, ⿱浞魚 here is likely a misprint of 𩸧. But given that ⿱浞魚 has been included in 漢字海, which quotes 直音篇, better just encode it as-is.