Corinthian reinforced galleys

[Paullus Scipio]

During the Peloponnesean war, the Cornthians and Syracusans modified their galleys to allow them to ram the Athenian galleys bow-on:

Thuc. 7.36.2 In addition to other improvements suggested by the former sea-fight which they now adopted in the equipment of their navy, they cut down their prows to a smaller compass to make them more solid and made their cheeks stouter, and from these let stays into the vessel's sides for a length of six cubits within and without, in the same way as the Corinthians had altered their prows before engaging the squadron at Naupactus.

They seem to have turned the bow of their galleys from the usual spike-shaped ram to essentially a trident-shaped bow. The ram was shortened and heavily reinforced and two projections stuck out about 10 feet from the bow on either side of the beginning of the ram.

Does anyone know of a reconstruction of this, or even some good illustrations?

This is not quite correct.There is no 'trident' shape to the bows.The type of bow most people are familiar with is the "post Corinthian" bow. Previously, triremes had a 'hollow' bow. See Connolly's reconstruction of this type, p.265 "Greece and Rome at War", and the coin reverses on p.264 giving a good 'before and after' idea of the old and modified bows.
What Thucydides says can be translated thus: "They shortened the bows of their ships and strengthened them;they laid out stout 'epotides', and fixed stays from the 'epotides' to the ships sides both inside and out" (the 'epotides' lit: "ears" were the transverse beams across the hull supporting the 'paraxereisia' = outrigger that supported the upper bank of oars, sometimes in English called 'catsheads').
The Greek word for 'fixed' is the same derivative as the English term 'hypotenuse'. The stays thus formed a "Y" support to each of the the "T" shapes formed by the 'epotides' running at 90 degrees to the ship's sides. This strengthened 'epotides' meant that the opponent's epotides and paraxereisia would be smashed in a near head-on collision, allowing the scraping off of the opponent's oar-banks.......