Thalassa..

Diodorus Siculus, Library of History 5. 55. 1 (trans. Oldfather) (Greek historian C1st B.C.) :
"The island which is called Rhodes was first inhabited by the people who were known as Telkhines; these were children of Thalatta (the Sea) . . . Poseidon, the myth continues, when he had grown to manhood, became enamoured of Halia, the sister of the Telkhines."

Pausanias, Description of Greece 2. 1. 7 - 9 (trans. Jones) (Greek travelogue C2nd A.D.) :
"In the fore-temple [of Poseidon at Korinthos on the Isthmos] are images, two of Poseidon, a third of Amphitrite, and Thalassa (Sea), which also is of bronze . . . On the middle of the base on which the car is [of the chariot of the statue of Poseidon] has been wrought Thalassa (Sea) holding up the young Aphrodite, and on either side are the Nymphai called Nereides . . . The other offerings are images of Galene (Calm) and of Thalassa (Sea), and a horse like a whale from the breast onwards [a hippokampos]."

Philostratus the Elder, Imagines 1. 27 (trans. Fairbanks) (Greek rhetorician C3rd A.D.) :
[From a description of an ancient Greek painting :] The painting depicts also [the town of] Oropos as a youth among bright-eyed women, Thalattai (the Seas)."
[N.B. Oropos was a coastal town.]

Philostratus the Elder, Imagines 2. 16 :
"[From a description of an ancient Greek painting :] The Isthmos, my boy, is painted in the form of divinity reclining at full length upon the ground [i.e. as Gaia the Earth], and it has been appointed by nature to lie between the Aegean and the Adriatic as though it were a yoke laid upon the two seas. On the right it has a youth, surely the town of Lekhaion, and on the left are girls; these are the two Thalattai (Seas), fair and quite calm, which lie alongside the land that represents the Isthmos.

Callistratus, Descriptions 7 (trans. Fairbanks) (Greek rhetorician C4th A.D.) :
"[From a description of a statue of the bard Orpheus :] You could see the bronze taking on the shape of rivers (potamoi) flowing from their sources toward the singing, and a wave of the sea (thalassa) raising itself aloft for love of the song, and rocks being smitten with the sensation of music, and every plant in its season hastening from its usual abode towards the music of Orpheus."

Orphic Hymn 22 to Thalassa (trans. Taylor) (Greek hymns C3rd B.C. to 2nd A.D.) :
"To Thalassa (Sea), Fumigation from Frankincense and Manna. Tethys [here equated with Thalassa] I call, with eyes cerulean bright, hid in a veil obscure from human sight: great Okeanos’ empress, wandering through the deep, and pleased, with gentle gales, the earth to sweep; whose ample waves in swift succession go, and lash the rocky shore with endless flow: delighting in the sea serene to play, in ships exulting, and the watery way. Mother of Kypris [Aphrodite], and of Nephelai (Clouds) obscure, great nurse of beasts, and source of fountains pure. O venerable Goddess, hear my prayer, and make benevolent my life thy care; send, blessed queen, to ships a prosperous breeze, and waft them safely over the stormy seas."

Oppian, Halieutica 1. 74 (trans. Mair) (Greek poet C3rd A.D.) :
"Be thou gracious unto me, thou who art king in the tract of the sea [Poseidon], wide-ruling son of Kronos, Girdler of the earth, and be gracious thyself, O Thalassa (Sea), and ye gods (Daimones Thalassai) who in the sounding sea have your abode; and grant me to tell of your herds and sea bred tribes."