Ultrasound tongue image data are presented for two female speakers of the Central Australian language Arrernte, focusing on the nasal and lateral coronal consonants. These coronal places of articulation are: dental, alveolar, retroflex and palatal. It is shown that the tongue back is particularly far forward for the palatal consonant, and to a lesser extent also for the retroflex consonant. There is a general flattening of the tongue for the dental consonants. In addition, the back of the tongue is consistently further forward for the nasal consonants than for the laterals — this is true for all places of articulation. Finally, a double-pivot pattern for the retroflex articulations is observed for one speaker, but not for the other.