Alien Rites

From the back cover of the Ace Books first edition: The boys in homicide have a new partner - he looks like a seven-foot stingray and smells like fresh limes. But he's one hell of a cop... ... Now Detective David Silver and his Elaki partner String return, up to their necks in an Elaki blood feud. A local college student is missing, his abandoned car stained with human and Elaki blood. Two days later, a professor from the same university disappears. Silver and String know there is a connection, but what they discover in the grimy shadows of Elaki-Town is a dark conspiracy of murder and revenge that could change the way humans and Elaki look at each other forever...