Romulan

At the time of it's introduction, the V-30 (Winged Defender) was the most powerful of all Romulan warships. The cruiser looks like a bird and has variable wing positions. The class was named from the Romulan vas'deletham (winged defender), in reference to a small, flying creature native to Remus. These small birds have been known to fight to the death to defend their nest, driving away even full grown Romulans. (FASA Romulan Ship Recognition Manual)
TMP Romulan Winged Defender   
The IRW Valdore is a Valdore-type Romulan warbird launched in the 24th century. Its first known encounter came in 2379 when it assisted the Enterprise-E in engaging the Scimitar in the Bassen Rift. At the time, its commanding officer was Commander Donatra. The Valdore suffered heavy damage in the assault, but survived. It would later dispatch shuttlecraft with medical support to aide injured crewmembers aboard the Enterprise-E. (Star Trek: Nemesis)  (MemoryAlpha)
Valdore  
The Romulan shuttle was used by the Romulan Star Empire in the 2370s. They are approximately the same size as a Danube-class runabout. Romulan Senator Vreenak travelled to a secret meeting with Benjamin Sisko on Deep Space 9 aboard such a shuttle in 2374. (DS9: "In the Pale Moonlight")  (MemoryAlpha)
Romulan Shuttle  
Romulan "D'Vethex" class Sparrowhawk. This is a custom ship. It is designed to serve as a post TNG era Romulan Destroyer. Design and Textures by Raven Night "Ravennx". Model and Textures by Gabriel Crown "Mind-Blip". This ship is armed with dual rapid-fire disruptor cannons and a twin pulse torpedo launcher with maximum of 35 torpedoes.        License (Please read)
D'Vethex  
The Romulan scoutship was a small starship used by the Romulan Star Empire for scouting missions during the late-24th century. They would rarely venture out as far as the Romulan Neutral Zone. Very little is known about the capabilities of these vessels, including whether or not they are equipped with cloaking devices.  (MemoryAlpha)
Romulan Scout